Fits S4 with or WITHOUT Sport Differential. System contains a merge X-Pipe for increased performance and improved sound. Features polished T-304 stainless steel tips. Borla Catback & Axleback 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.
Features:
- Fits S4 models with or without Sport Differential
- System contains a Merge X-Pipe
Specifications:
- Construction: All Welded
- Exhaust Type: Cat back System
- Exit Position: Rear
- Exit Style: Single Split Rear Exit
- Grade Type: Performance
- Inlet Inside Diameter: 2.500 in.
- Material: T-304 Stainless Steel
- Muffler Type: Straight-Through
- Off Road Use Only: No
- Outlet Outside Diameter: 1.750 in.
- System Type: Cat Back
- Tail Pipe Diameter: 2.500 in.
- Tail Pipe Material: Stainless Steel
- Tip / Outlet Finish: Polished T-304 Stainless Steel
- Tip Diameter: 3.5 in.
- Tubing Diameter: 2.500 in.
Fitment:
- Audi S4 2010-2016