MBRP S6004P 4 Inch Single Side Aluminized Steel No Muffler For 01-07 Silverado/Sierra 2500/3500 Duramax Classic Extended/Crew Cab Cooling System Replaces Cummins and Holset P/N's

Replaces Cummins and Holset P/N's including: 5550060

the included BD modified valve body enhances your transmission performance due to its new valve design

Optimizes Cylinder Air Distribution

With the ability to bolt to any stock or aftermarket 6-bolt torque converter this flex plate

Help reduce the heat in your engine bay with the Mishimoto Turbo Blanket

MBRP S6004P 4 Inch Single Side Aluminized Steel No Muffler For 01-07 Silverado/Sierra 2500/3500 Duramax Classic Extended/Crew Cab Cooling System Replaces Cummins and Holset P/N'sTHE BEST BANG FOR YOUR BUCK ARMOR LITE Series exhaust systems are a value option with the same fitment, performance and sound as the premium products from MBRP. Heavy gauge Aluminized Steel tubing helps to resist dings and dents caused by debris under your vehicle. This material can be a great choice for you if you live in a dry climate that doesnt see much precipitation, or if youre looking for great sound on a budget. All of the tubing is mandrel