Does NOT fit MK7.5. This 3" diameter into dual 2.25" Cat-Backâ„¢ system delivers the classic S-Type sound with no drone inside the vehicle. Add optional resonator 60666 when additional sound reduction is desired. Adding this resonator will achieve the Touring sound level. The resonator is NOT designed to be used with the Original Equipment (O.E.) exhaust system. The system features single 4" round bright chrome on T-304 stainless steel tips on each tail pipe. Systems with black chrome on T-304 stainless steel tips and brushed T-304 stainless steel tips are also available. BORLA Cat-Backâ„¢ and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power driving excitement fuel economy and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere. 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 you'd expect from the world's most experienced (and most winning) exhaust brand.