2007.5-2010 Duramax 4" Downpipe Back Exhaust w/ Muffler (431010) Material:Stainless

2007.5-2010 Duramax 4" Downpipe Back Exhaust w/ Muffler (431010) Material:Stainless2007. 5 2010 Duramax 4" Downpipe Back Exhaust w Muffler (431010) Constructed out of 16 gauge aluminized steel or T409 Stainless, this exhaust system is designed to simplify installation with included clamps, preweld contour bends and improved flanges. Enjoy a noticeable boost in performance, lowered EGTs and amplified air flow with this Mel's system. For powerhouse performance, Mel's delivers horsepower you can hear!

0L Aluminized 4" Cat Back Single w/ Muffler (421108)

When machining valve seat on OEM head to fit these larger valves

5-2010 Duramax LMM EGR Block Off Plate (631002)

Hot Retorque: After reaching operating temperature

Although this is considered a drop in cam it is important to check clearances (You can use our clearance calculator to make it a little easier)

see the image showing the turbo oil drain ports

The KC Vortex Stage 1 Turbo was designed as a drop in replacement for the 2004

3 Powerstroke

This pan features internal heat sinks and external cooling fins

No modifications needed and will drop right in

To top it all off this turbo comes with a brand new genuine HE300vg Holset actuator to ensure proper operation

reducing engine noise