Aero Exhaust AT4040 Aero Turbine Muffler requires-mpvi Does not cover contaminated oil

Does not cover contaminated oil or quality

DP Customs 2001-2019 Duramax HD Flexplate — The DP Customs HD Flexplate replaces the weak factory flexplate which is prone to failure and increases strength with almost double the thickness

(01 LB7 requires AC line re routing)

This idler can be used with lifted

2001-2016 Duramax S400 Valley Turbochargers

Aero Exhaust AT4040 Aero Turbine Muffler requires-mpvi Does not cover contaminated oilThe Aero Exhaust AT4040 Aero Turbine Performance Muffler provides your truck with a deeper, more aggressive exhaust sound. The AT4040 is the only performance muffler that will give you the performance of a full system without breaking the bank. This Muffler is designed for high output diesel engines and features a patented airfoil technology that increases horsepower, torque, flow and also reduces temperatures. Most vehicles have extreme restrictions