2011-2015 Duramax LML 4" Cat Back Exhaust No Muffler (431014)2011 2015 Duramax LML 4" Cat Back Exhaust No Muffler (431014) 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!

these rod bolts provide superior strength

but moderate nose pressure

and perform amazing

The KC 300893 Compressor Outlet O-Ring is a direct stock replacement for your Late 1999 to 2003 Super Duty and Excursion

Cast from high-grade A356

IMPORTANT: The factory downpipe (2001-2004 LB7 only) does not fit aftermarket manifolds and up-pipes

the PPE Stud Kit delivers durability and confidence that surpasses your expectations

ARP premium grade bolts feature an exclusive

2008-2010 Ford Powerstroke 6

3L 4" Turbo Back Exhaust w/ Muffler (421110)

Lash that is too tight will damage coating because it does not allow enough oil film thickness to form before the next impact cycle

1999-2007 Duramax Mean Green High Output Alternator (MG8247)