aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System (49-44004) 1672 We are so confident in

We are so confident in its quality that we guarantee it with a 1-year manufacturer's limited warranty that protects against breaking when used under normal conditions

The included HPS high temp 4-ply reinforced silicone hoses can withstand minimum 50+ psi of boost and replace the factory rubber couplers

Improve throttle response

a midpipe replacement is recommended

aFe Large Bore-HD 4 IN 409 Stainless Steel DPF-Back Exhaust System (49-44004) 1672 We are so confident inMach Force XP 409 SS DPF Back Exhaust System with Single Side Exit (49 44004) by aFe. With Muffler Delete Pipe. Exhaust System Type: DPF 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 Mach Force XP DPF Back Exhaust System. aFe dyno tests every system for maximum gains, and