2008-2010 Powerstroke 6.4L C&C 4" Downpipe Back Exhaust (421015)2008 2010 Powerstroke 6. 4L C&C 4" Downpipe Back Exhaust (421015) 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!

PML Parts tuning is designed specifically for GM Gen V LT engines

This is a Remanufactured OEM replacement turbocharger with a cast stock compressor wheel

Expect MPG increase over stock injectors with good smoke control

The P-Series has a high crush for maximum retention

The first and only intake manifold mounted grid heater that meets the Cummins spec for heating element support

Choose the original

185” bore)

Pilot Hole Technology - These injectors use a 5 Hole + 2 Pilot nozzle

rpm too high or spring pressure is too high

9L ARP2000 Black Oxide Head Stud Kit (247-4203)

PPE recognized the need for a better filter product made specifically for the Duramax engine

but they are very costly upgrades