2015.5-2016 Duramax LML 5" Downpipe Back Dual Exhaust No Muffler (531014)2015. 5 2016 Duramax LML 5" Downpipe Back Dual Exhaust No Muffler (531014) 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

3L Mean Green High Output Alternator (MG7796)

850″ intake and 45 degree 1

7L High Output Injector: Brand New Stock power level injector - SINGLE

Recommended timing set to 17-18 degrees

**We Highly Recommend adding these products for best results:**

Corrosion is prevented by an inhibitor which produces a protective non-deposit-forming film on metal surfaces in the fuel system and which neutralizes corrosive acids formed during combustion

030 Piston With Rings (

1998-2020 Gen III / Gen IV / Gen V Katech C5-R Timing Chain (KAT-7636)

This increased surface area allows improved fluid flow and filtering

020 (224-3163WR

if you do not surface the block

Reman injector set flowing at 100 percent over