2011-2019 Powerstroke 6.7L 5" DPF Back Exhaust (521102)2011 2019 Powerstroke 6. 7L 5" DPF Back Exhaust (521102) Constructed out of 16 gauge aluminized steel, this exhaust system is designed to simplify installation with included clamps, pre welded contour bent hangers 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!

Little to no smoke and safe on stock trucks

Manufacturer's Part Number: CS54774-1

ARP2000 is an alloy steel that can be safely heat treated to a higher level

Engines under 800 HP: Cut groove in just the cylinder head

This is basically a pre-built turbo with our "balanced assembly" that has our 1 year

080″ thickness (1

True race block which will work with most standard components

fit and affordability

Technical Insights

1989-1993 Cummins 5

2017-2019 Duramax L5P Cab & Chassis 4" Downpipe Back Exhaust w/ Muffler (431024)

7L Dynomite Diesel Stock Brand New Injector 50% Over (DDPN6719-100)