The AFE Mach Force XP diesel exhaust systems are constructed out of 4 inch, mandrel bent, 409 grade stainless steel. They are designed to provide smooth airflow from the exhaust tip all the way to the turbo. Stainless Steel construction provides a long lasting finish. These systems come complete with all tubing, muffler, OE style clamps and bayonet style hangers for an easy, long lasting installation. All AFE exhaust systems are engineered and manufactured in their Corona, California manufacturing facility. The AFE systems are made for all wheelbase trucks, so no matter how your truck is configured you will have enough pipe to do the job. On shorter wheelbase trucks you will end up with extra pipe left over.