2011-2019 Powerstroke 6.7L Cab & Chassis 4" Downpipe Back Exhaust No Muffler (421017)2011 2019 Powerstroke 6. 7L Cab & Chassis 4" Downpipe Back Exhaust No Muffler (421017) 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!

Two screws are 5 mm longer to accommodate the downpipe mounting bracket

Flywheel bolts play an important role in the performance and safety of race vehicles and street machines

4L Dynomite Diesel Custom Super Mental Injectors (DDP64-SM)

Perfect for daily drivers and performance enthusiasts looking for a balance of power and reliability

9L 5" Turbo Back Single No Muffler (511015 / 512013)

These harmonic balancer components are made of high-quality materials and come in styles and thicknesses designed to fit your needs

particularly with our competition gasket

It features our ported KC compressor cover

with no added piping kits needed

DRIVEN DI Series Racing Oils are formulated for High-Performance Engines/Racing applications only

9L Brand New Injector Set 90HP 30% Over (DDPN325-90)

Maximum size nozzle recommended for stock turbo