2007.5-2010 Duramax LMM 5" Downpipe Back Exhaust w/ Muffler (531001)2007. 5 2010 Duramax LMM 5" Downpipe Back Exhaust w Muffler (531001) 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!

Larger 4" inlet

The final step is a metal finishing process that is also performed in-house at ARP with a black oxide coating applied for long lasting corrosion resistance

Radiused Cutter: Always recommended for precise groove formation and the best gasket-to-wire contact

Part Type: Connecting Rod Bearings

2019 Powerstroke 6

The Mahle Gaskets kits include all necessary gaskets and seals to reseal your leaky Cummins

Good for full power pulls on the dyno

This turbo works great on stock injectors

The DOD system in LS engines aims to improve fuel efficiency by deactivating half of the engine’s cylinders during light load conditions

Note: VE Rotary injection pump should at bare minimum have an upgraded fuel pin installed or little to no gain will be seen from injector upgrade

50MM (HS4068B)

Simply stated