Borla Stainless Steel Cat Back System Audi S4 10-11

If youre looking to improve the performance, exhaust tone, and exhaust volume of your Audi S4, an aftermarket exhaust is just the thing for you. This exhaust, developed and designed by Borla Performance Industries, provides incredible benefits to your Audi S4 thanks to its brilliant and efficient design which will allow your Audis exhaust to flow better than ever before, and increased air flow means increased HP and Torque across the RPM range, as well as enhanced exhaust sound and volume.

BORLA Cat-Back exhausts feature patented, straight-through and multi-core technology 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 austenitic stainless steel, superior to T-400 series knockoffs, to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow and power, and precision computer-controlled CNC manufacturing ensures an accurate fit. Best of all, BORLA stands behind every system with a Million-Mile Warranty. Just what youd expect from the worlds most experienced (and most winning) exhaust brand.