GM Duramax

Upgrade your Duramax with a 4" or 5" Downpipe-Back Race Exhaust System designed to maximize exhaust flow and off-road performance. Built from high-grade stainless steel, this system removes restrictive factory components, improving power, throttle...

The Duramax LBZ EGR Valve & Cooler Delete Kit is designed to eliminate the restrictive and failure-prone factory EGR system on late 2006 to early 2007 Duramax LBZ 6.6L engines. By removing the EGR valve and cooler, this kit improves airflow, r...

Keep the boost in and the power flowing—durable silicone hoses for your LLY Duramax. Replace your brittle factory hoses with a performance-driven upgrade. The Silicone Intercooler Hose Kit for 2004.5–2005 LLY Duramax engines is engineered to handl...

Nothing bites like Gator—head stud strength your Duramax can count on. Engineered to protect your 6.6L Duramax diesel (LB7, LLY, LBZ, LMM, LML) under extreme stress, the Gator Heavy Duty Head Stud Kit delivers the superior clamping force needed to...

Unleash your Duramax with a stainless 4” race pipe designed for maximum flow and reliability. This 4” Stainless Steel DPF Delete Pipe is purpose-built for 2015.5–2016 GMC Sierra and Chevy Silverado 2500/3500 HD trucks with the 6.6L Duramax engine....

The Duramax 6.6L DPF Delete Pipe is designed for 2011–2015 Chevrolet Silverado and GMC Sierra 2500/3500HD trucks equipped with the 6.6L Duramax engine. Built from stainless steel for maximum durability, this pipe replaces the factory catalytic con...

The Duramax 6.6L Intake Bridge Kit is engineered to improve airflow and overall engine efficiency for 2011–2016 GMC Sierra and Chevrolet Silverado 2500/3500 HD trucks. Featuring precision mandrel-bent aluminum tubing and billet aluminum plates, th...

The Duramax Exhaust Manifold Kit is built for 2001–2016 Duramax 6.6L engines and delivers significant gains in airflow, turbo efficiency, and throttle response. With cast iron manifolds for strength and stainless-steel up-pipes for durability, thi...

Boost the performance of your 2011–2015 Duramax 6.6L with this Downpipe-Back Race Exhaust System. Designed for off-road and competition use, it removes restrictive factory components to maximize airflow, reduce exhaust gas temperatures, and improv...

Unlock improved performance and reliability with the Duramax LML EGR Cooler Delete Kit, built specifically for 2011–2016 GMC Sierra and Chevrolet Silverado 2500/3500 trucks. This kit removes the restrictive EGR system, reducing carbon buildup, pre...

The Duramax LML EGR Delete Kit is a proven upgrade for 2011–2014 GMC Sierra, Chevrolet Silverado 2500/3500, and Savana/Express Vans. This kit completely removes the restrictive factory EGR system, helping to improve performance, reliability, and e...

Upgrade your 2004.5–2010 Chevrolet Silverado or GMC Sierra 2500/3500HD 6.6L Duramax with this 3" stainless steel downpipe. Built for durability and performance, this downpipe improves exhaust flow by 20% over stock, lowers engine bay temperatures ...

Upgrade your 6.6L Duramax with this 3" stainless steel downpipe, designed to outperform the restrictive factory unit. With a 20% increase in exhaust flow, this downpipe reduces EGTs, improves turbo spool, and boosts efficiency—whether you’re towin...

The Duramax L5P CAN BUS Plug Kit is an essential upgrade for 2017+ Chevrolet Silverado and GMC Sierra L5P 6.6L diesel trucks undergoing delete tuning. Designed to keep your truck’s ECM functioning correctly, it prevents faulty signals after removi...

For off-road use only Photo shown is for reference. Actual tuner may differ in appearance and branding Enhanced Performance Options: L5P GM Duramax Tunes (2017-2025) L5P Duramax tuning provides two powerful choices for your 2017-2025 GM Silver...

Boost performance and reliability with this passenger side up-pipe for 2001–2016 Duramax 6.6L engines. Featuring a larger 2" diameter and durable stainless steel construction, this up-pipe replaces the OEM pipe that often develops leaks at the bel...

Take control of your Chevrolet Silverado or GMC Sierra 2500/3500 6.6L Duramax with a pre-modified, unlocked E41 ECM. This upgrade enables advanced tuning without the hassle of traditional modifications, giving you more performance and full flexibi...

Upgrade your 2.8L Duramax Canyon or Colorado with this Flo-Pro 3" turbo-back exhaust system. Built for competition use, this system delivers maximum flow by replacing your restrictive OEM exhaust with a high-performance aluminized steel design. En...

Boost Reliability & Performance The LMM 6.6L EGR Delete Kit is a proven upgrade for 2007.5–2010 GMC Sierra and Chevrolet Silverado 2500/3500 Duramax 6.6L engines. By eliminating the restrictive EGR system, this kit reduces common issues such a...

Unlock On-The-Fly Power for Your Duramax Boost performance and drivability with our premium DSP5 SOTF Switches, designed for seamless integration with EFI Live DSP5 tuning. These switches allow you to change tunes instantly while driving—no reflas...

Expand your EFI Live AutoCal with this Tune Package, engineered for GM Duramax trucks. Perfect for adding another vehicle to your existing AutoCal, this package provides custom tune files and optional SOTF (Shift-On-The-Fly) switch for real-time c...

Unlock your truck’s full capability with the EFILive AutoCal V3 DPF Delete Tuner, complete with Black Bandit custom tuning. Built for GM Duramax 6.6L engines, this tuner delivers horsepower gains, improved fuel economy, and real-time control, ens...

Unleash the power of your GM Duramax LM2 (2020-2022) with this 3" Stainless Steel Exhaust System, crafted to enhance performance and efficiency. The Duramax LM2 Cat and DPF Race Pipe improves airflow, reduces exhaust gas temperatures, and delivers...

Upgrade your GMC Sierra or Chevrolet Silverado 2500/3500 with this comprehensive All-in-One Duramax LML tuner and DPF delete kit, designed for 2011–2016 6.6L Duramax diesel engines. Engineered for maximum power, reliability, and efficiency, this ...