2008-2010 Powerstroke 6.4L 4" Downpipe Back Exhaust w/ Muffler (421006)2008 2010 Powerstroke 6. 4L 4" Downpipe Back Exhaust w Muffler (421006) 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!

The Pro Link+ sports an all new design with a 4 Pin M8 Motorsports grade connector

Our most popular selling injector set due to it's mix of excellent fuel economy

7L HO Stock Dynomite Diesel Brand New Injector (DDPN6719)

The up-pipes feature a bellowed design that allows for expansion and contraction without need to rely on a factory gasket

Replace your factory-stamped steel oil pan and get rid of that dirty oil that you've been holding on to

Torque Procedure

It is 49 state certified

road salts

NOTE: We build our stage 2 turbos from 2003 cores

and resistance to fretting

This deep transmission pan comes standard with the Deep Pan Transmission Filter (128058700)

Ditch the grit