aFe Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polished Tip (49-44002) 18140 BHP: 180 2004 Audi TT

BHP: 180 2004 Audi TT Quattro Engine: 1

The large 60mm piston design offers more comfort and control in all driving conditions

2 Stingray 2016 Chevrolet Corvette Submodel: Z51 Performance Package

Together with the smoother bends

Special Note: Mounting bases sit at edges of trunk lid

aFe Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polished Tip (49-44002) 18140 BHP: 180 2004 Audi TTLarge Bore HD 409 SS Cat Back Exhaust System with Single Side Exit (49 44002) by aFe. With Muffler Delete Pipe. Exhaust System Type: Cat Back. Exhaust Tubing Material: 409 SS. Main Tubing Diameter: 4". Exhaust System Sound: Aggressive Loud. Get increased exhaust flow, more horsepower and torque, improved performance and lower exhaust gas temperatures with the aFe Large Bore HD Cat Back Exhaust System. aFe dyno tests every system for maximum gains, and