COBB Stainless Steel Cat-Back Exhaust for 2011-2021 WRX/STi Sedan (515160) Injen • 6061-T6 aluminum lockout plates

• 6061-T6 aluminum lockout plates

5" x 24" 4mm 10 Sheets 20

• Silencer Band

The high-quality Koyo Japan radial bearing provides less bind for noise-free operation and smoother steering response

COBB Stainless Steel Cat-Back Exhaust for 2011-2021 WRX/STi Sedan (515160) Injen • 6061-T6 aluminum lockout platesAll new cat back exhaust that fits ALL 2011 2021 WRX STI Sedans! This new system includes some nice upgrades and replaces two outgoing part numbers that were chassis specific. The COBB Tuning catback exhaust is heralded often for its quality, performance, and subtlety. Engineered to be a vehicle specific unit, the catback exhaust uses the highest quality stainless steel piping and a muffler designed for direct and efficient flow of exhaust to achieve