aFe Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polished Tip (49-42002) 1670 Fully serviceable Injen 8-Layer Oiled

Fully serviceable Injen 8-Layer Oiled Cotton Gauze

By changing the block off plates behind the center tip you can adjust the SPL (Sound Pressure Level) to your taste

One-piece carbon sheet construction ensures consistent weave and superior strength

The APR Boost Hose System is a comprehensive

aFe Large Bore-HD 4 IN 409 Stainless Steel Cat-Back Exhaust System w/ Polished Tip (49-42002) 1670 Fully serviceable Injen 8-Layer OiledLarge Bore HD 409 SS Cat Back Exhaust System with Single Side Exit (49 42002) 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