2017-2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431022)2017 2019 Duramax L5P 4" Downpipe Back Exhaust No Muffler (431022) 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! IMPORTANT NOTE: These kits will

Dart Big M Chevy Big Block Iron Block – 4

2001-2004 Duramax LB7 Dynomite Diesel Brand New Injector SAC Nozzle 100% Over (DDPNLB7-200)

2006-2010 Duramax Standard Xcelerator POWER LEVEL HP INCREASE TORQUE INCREASE 4 225 335 3 160 240 2 90 160 1 40 97

This is our go-to EGR delete for the 2011-2016 Ford 6

These MAHLE Pistons feature coated skirts and are manufactured to the specifications of your OE pistons but with a reduced compression height

and then some

We modified the the compressor housing to fit our upgraded 63

3L IDI engines

flat 12-point head design and larger than stock shank diameter for increased strength and improved flywheel register

100% nozzles: GRAPH 3 1300us: 742hp 1411tq  BLUE LINES

Open lifter valley improves oil return to pan

which allows fuel to flow 70% more efficiently than with the restrictive stock 1/4 inch inlet fitting