2015.5-2016 Duramax LML 4" Downpipe Back Exhaust w/ Muffler (431018)2015. 5 2016 Duramax LML 4" Downpipe Back Exhaust w Muffler (431018) 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

PPE’s new Transmission Transfer Case Brace helps support the overhanging

Just want to replace your stock turbo with something more durable and offers better performance

engineered for those who demand shop-proven reliability and a "dialed-in" engine bay

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

This direct bolt-on replacement adds style and function to your engine bay

Our Dual Feed injectors come with internal body modifications as well as custom nozzles to match the user's power goals and intended use

Built from a brand new genuine Holset stock turbo

The P-Series Rod Bearing has a hardened steel back for added strength and is designed for applications with extremely high RPMs that can cause severe rod bore close in

then shut engine down

Safe on stock trucks

Get the most fuel flow possible from your stock CP3 pump by eliminating possible cavitation damage to CP3 pump from excessive suction required by high pressure CP3’s fuel injection pump with this “high flow” PPE CP3 Pump Inlet Fitting

2001-2004 Duramax LB7 Dynomite Diesel Economy Series Reman Injectors (DDPLB7-ECO)