Installation REQUIRES Cutting Original (O.E.) Equipment Exhaust System.This 3" diameter BORLA Axle-Back system features the aggressive ATAK sound level. ATAK Acoustically-Tuned Applied Kinetics technology is based on specifically-tuned attributes of the internal muffler cores which are calibrated on a vehicle-by-vehicle basis to deliver the most desirable sound. Even though the sound on the exterior is uncompromising there is no resonance inside the vehicle a product of painstaking engineering and over 40 years of experience. BORLA systems unleash hidden horsepower. Increased exhaust velocity adds power driving excitement fuel economy and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere. The system exits through single 4.5" round bright chrome on T-304 stainless steel tips on each muffler. Each system is built from premium T-304 stainless steel superior to T-400 series knockoffs (such as 409) to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all BORLA stands behind every system with a Million-Mile Warranty. Just what youâ€d expect from the worldâ€s most experienced (and most winning) exhaust brand.