Borla(r) system is a True Dual design. Front Muffler contains an Internal H-Pipe. System contains Polyphonic Harmonizer technology. Rear muffler has been replaced with Borla(r)'s patented SwitchFire(r) rear section. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
Borla(r) system is a True Dual design. Front Muffler contains an Internal H-Pipe. System contains Polyphonic Harmonizer technology. Rear muffler has been replaced with Borla(r)'s patented SwitchFire(r) rear section. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
S-Type Cat-Back(tm) Exhaust System 2024-2025 Chevrolet Silverado 1500 ZR2/ GMC Sierra 1500 AT4X 6.2L V8 Automatic Transmission 4WD Crew Cab With Short Bed (5' 9") 147.4" Wheelbase/Turn Down Tail Pipes/Borla(r) System Has A Valve Simulator.
Fits ZR2 &. AT4X models. Borla(r) system has a valve simulator to prevent the Check Engine Light from coming on. Polyphonic Harmonizer 60680 can be added to this system to attain the ATAK(r) sound level. Features turn down tail pipes. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
Fits ZR2 &. AT4X models. Borla(r) system has a valve simulator to prevent the Check Engine Light from coming on. Polyphonic Harmonizer 60680 can be added to this system to attain the ATAK(r) sound level. Features turn down tail pipes. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
Fits vehicles with Non-Active Exhaust. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
Fits vehicles with Non-Active Exhaust. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
S-Type CrateMuffler For Small Block Ford High Output 289/ 302 (Exc. Coyote 5.0L)/ 351 Windsor & Big Block Moderate Output 390/ 427/ 428/ 460 FE Big Block V8.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
ATAKÂ CrateMuffler Small Block Ford High Output 289/ 302 (Exc. Coyote 5.0L)/ 351 CID Windsor & Big Block Moderate Output 390/ 427/ 428/ 460 CID FE Big Block V8 2.5" Offset/ Offset 14" x 4.35" x 9.10" Body
CrateMufflers are tuned for specific engines. CrateMufflers are tuned for specific engines. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. CrateMufflers are tuned for specific engines. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
S-Type CrateMuffler For Small Block Ford High Output 289/ 302 (Exc. Coyote 5.0L)/ 351 Windsor & Big Block Moderate Output 390/ 427/ 428/ 460 FE Big Block V8.
CrateMufflers are tuned for specific engines. Mufflers have directional flow. Outlet end has mounting bracket on it.. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. Mufflers have directional flow. Outlet end has mounting bracket on it.. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
ATAKÂ CrateMuffler Small Block Ford High Output 289/ 302 (Exc. Coyote 5.0L)/ 351 CID Windsor & Big Block Moderate Output 390/ 427/ 428/ 460 CID FE Big Block V8 2.5" Offset/ Center 14" x 4.35" x 9.10" Body
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400939 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400939 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400939 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400939 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400937 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
Universal muffler. Reversible design. Compact size is perfect for applications with limited space. Un-Notched necks are designed for weld in installation. If clamping use 3" wide band clamp 18006.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
Universal muffler. Reversible design. Compact size is perfect for applications with limited space. Un-Notched necks are designed for weld in installation. If clamping use 3" wide band clamp 18006.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. CrateMufflers are tuned for specific engines. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. CrateMufflers are tuned for specific engines. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Add resonator 400938 to attain the Touring sound level. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.
CrateMufflers are tuned for specific engines. When installed on cataloged applications they will reduce or eliminate drone. Mufflers have directional flow. Outlet end has mounting bracket on it.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.. Borla products are constructed using T-304 stainless steel for long life and sharp appearance and feature all welded construction for maximum durability.