6.6L LLY (2004.5-2005) Duramax

Our Billet Aluminum Bottom Sump with Integrated Fuel Return System completely eliminates the need to run the return of your aftermarket fuel pump to the top of the tank or cut into the fuel filler neck, therefore cutting install time tremendously! Key Features: -...

🛠️ G&R Billet Aluminum Bottom Sump with Integrated Fuel Return – Fast Install, Leak-Free, High-Flow Simplify your diesel fuel system upgrade with the G&R Billet Aluminum Bottom Sump featuring an Integrated Fuel Return. This innovative design eliminates the need to route your return line to...

🛠️ 4" x 18" Flexible Exhaust Tube – Pre-Cut | Stainless Steel This 4" Diameter x 18" Length Flexible Exhaust Tube is a pre-cut stainless steel section designed to provide vibration isolation, thermal expansion relief, and easier routing in custom exhaust systems. Ideal for diesel performance builds,...

🚀 Turbo Screen Guard with Velocity Stack – High-Flow Protection in Style Protect your turbo without sacrificing performance. Our Turbo Screen Guard with integrated Velocity Stack is engineered for maximum airflow while offering protection from large debris. Built for high-performance turbo and supercharger setups, this...

🔩 Heavy-Duty T-Bolt Band Clamps – 300 Series Stainless Steel for High-Boost Diesel & Industrial Applications Stainless Diesel T-Bolt Band Clamps are engineered for secure, leak-proof connections in demanding industrial and diesel performance environments. Constructed from 300 series stainless steel, these clamps provide superior...

🛠️ Universal Boost Leak Tester Kit – Fits Most Turbocharger Inlets | Billet Plug, Silicone Coupler & T-Bolt Clamps Boost leaks rob your turbocharged engine of power, response, and efficiency. The best way to find them? Pressurize the entire intake system—and our Boost Leak...

🔍 Universal Turbo Boost Leak Tester Kit – Billet Plug, Silicone Boot & T-Bolt Clamps Stop chasing down boost leaks the hard way—pressurize your entire intake system and locate leaks quickly with our Universal Boost Leak Tester Kit. Designed to fit virtually any turbocharger inlet,...

Are you removing the injectors and don't want to reuse the seals? You are making the right choice. Replacing the injector seals is cheap insurance that you won't have an issue when you get the truck back together. Don't risk having to do the...

Does your original LLY fuel injector lines have rust or corrosion build up. Are the sealing surfaces showing damage? Are you questioning if they will even clean up? We certainly would. Replacing the fuel injector lines is highly recommended when changing the LLY fuel...

Does your original LLY fuel injector lines have rust or corrosion build up. Are the sealing surfaces showing damage? Are you questioning if they will even clean up? We certainly would. Replacing the fuel injector lines is highly recommended when changing the LLY fuel...

🛠 LLY Duramax Driver Side Intercooler Pipe Upgrade – 3.00" Mandrel-Bent Replacement Ditch the restrictive, crimped factory pipe and upgrade to Stainless Diesel’s high-flow 3.00" mandrel-bent intercooler pipe for your LLY Duramax. Designed for 2004.5–2005 GM 6.6L Duramax trucks, this driver-side pipe improves airflow,...

🛠️ LLY Duramax Driver-Side Intercooler Pipe – 3.00" Mandrel Bent Upgrade Eliminate the restrictive factory crimped intercooler pipe and upgrade to this 3.00" Mandrel Bent Driver-Side Intercooler Pipe for your LLY Duramax. Designed for maximum airflow and minimal pressure drop, this high-flow pipe improves turbo spool, throttle...

  Have your original or aftermarket injectors left you stranded? Are you cautious to use your truck for what its intended for? Want to feel confident in making that long trip across country or hauling that heavy load for work? Well, look no further...

Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 60% over fuel injectors!   The nozzles are enlarged using abrasive flow honing technology and are hydraulically flow matched to less than 1%. Each nozzle...

So, you're ready to push the limit of your build and want to find an injector you can trust to take you to the podium? With our background in OE development, manufacturing and pioneers of the performance common rail fuel systems, you can trust...

Have your original or aftermarket injectors left you stranded? Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 45% over fuel injectors!   The nozzles are enlarged using abrasive flow honing technology and are...

So, you're ready to push the limit of your build and want to find an injector you can trust to take you to the podium? With our background in OE development, manufacturing and pioneers of the performance common rail fuel systems, you can trust...

So, you're ready to push the limit of your build and want to find an injector you can trust to take you to the podium? With our background in OE development, manufacturing and pioneers of the performance common rail fuel systems, you can trust...

Have your original or aftermarket injectors left you stranded? Are you looking for an increase in power without sacrificing drivability or reliability? Well, look no further than our 30% over fuel injectors!   At 30% over stock, these are an excellent upgrade for close...