2015.5-2016 Duramax LML 4" Downpipe Back Exhaust No Muffler (431019) Material:Aluminized

2015.5-2016 Duramax LML 4" Downpipe Back Exhaust No Muffler (431019) Material:Aluminized2015. 5 2016 Duramax LML 4" Downpipe Back Exhaust No Muffler (431019) 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

or the valve can fail and cause exhaust gas to be constantly pushed back into your engine

Unlike factory bolts that can stretch and weaken under extreme conditions

POWER LEVEL HP INCREASE TORQUE INCREASE 3 120 200 2 90 160 1 40 97

you can customize your transmission settings to match your driving style

020 (224-3672WR

Enhanced Timing Stability: Keeps your camshaft locked in position under high-load conditions

5-2016 Duramax LML 4" Downpipe Back Exhaust w/ Muffler (431018)

these will retain the OEM feature if the vehicles calibration allows and is setup for it

9L Injector Set 125HP (DDPISB-125)

7L Gator Fasteners HD Exhaust Manifold Stud Kit - Black Oxide (EMSK5967C-BLK)

These Modified Rocker Arm Pedestals are machined/milled for installation of Head Studs in the 5

or just looking to upgrade the power levels