The aFe Exhaust Systems are designed
with one thing in mind: performance. Ang
with the Stainless Steel version anyone get
corrosion resistance at an economical price. Because
the design philosophy of aFe is about maximizing airflow, the aFe Exhaust System is wide and open. An open exhaust system reduces back pressure on the pistons, giving more power available to drive the wheels.

Choose from stainless steel in cat back kit. AFE exhausts are a natural extension of AFE's efforts to enhance the science of airflow management in performance vehicles. This is especially true in the diesel motor, which is simply a huge air pump. Since diesel engines are a compression ignition engine and modern diesel-powered vehicles are turbocharged, the more air pump in, the more power to generate. However, which turbocharged diesel, it is very important to get the hot truck exhaust out or the Exhaust Gas Temperature (EGT) rise to critical level that could damage the turbo itself.

This awesome Mach Force XP Cat-back exhaust system produces 11.5 horsepower and 9.5 lbs. x ft. of torque. The Mach Force XP exhaust system is constructed of mandrel bent, polished 304 stainless steel tubing and uses all factory mounting locations for a easy 1hr install time with no cutting or drilling required. This system uses a unique 3" resonance chamber to cancel high frequency sound waves producing an aggressive tone on throttle with a smooth sound at cruising speeds. The elimination of the muffler produces a weight savings of 15lbs. This system is finished off with stunning polished 304 stainless steel dual tip to finish off every 135i right.