Duramax
SINISTER DIESEL HIGH PERFORMANCE MOTOR MOUNTS (SDMMDMAX) FOR DURAMAX 2001-2010 LB7 / LLY / LBZ / LMM
Sinister Diesel High Performance Motor Mounts minimize drivetrain movement for better power transfer, smoother throttle transitions, and improved launches. They also enhance reliability, preventing wear and failure common in OEM mounts.
Sinister Diesel Injector Set (set of 8) (SDLMLINJK0120) for 2011-2016 Duramax 6.6L LML
Sinister Diesel remanufactured fuel injectors restore OEM performance for 2011-2016 Chevy/GMC 2500/3500HD trucks with 6.6L Duramax LML engines. They replace worn stock injectors, improving fuel delivery and engine performance at a lower cost than OEM parts. Includes a 2-year warranty.
Sinister Diesel Coolant Filtration System w /Wix (SDLMLCF11) for 2011-2016 Duramax 6.6L LML
This Coolant Filter Bypass System helps extend the life of your diesel engine by removing contaminants like casting sand and metal shavings, protecting components such as the water pump, EGR cooler, and oil cooler. It filters small amounts of coolant while the engine runs and features a durable CNC-machined aluminum filter block that mounts without drilling.
Sinister Diesel Injector Set (Set of 8) (SDLB7INJK0120) for 2001-2004 Duramax 6.6L LB7
Sinister Diesel remanufactured fuel injectors for the 6.6L Duramax LB7 restore OEM performance in 2001-2004 Chevy/GMC 2500 and 3500HD trucks. These injectors replace worn stock parts, improving fuel delivery, horsepower, and torque at a lower cost than OEM replacements.
Sinister Diesel Intake Bridge & Hot Side Charge Pipe Kit (SDINTRPIPELMLHOTIE) for 2011-2016 Duramax 6.6L LML
The Sinister Diesel LML Intake Bridge and Charge Pipe Kit upgrades 2011-2016 GM 6.6L Duramax engines by improving airflow and performance. Featuring larger-diameter CNC mandrel-bent aluminum tubing, it enhances turbo spool and efficiency. The intake bridge reduces restrictions, while the charge pipe boosts air velocity and lowers EGTs.
Sinister Diesel Hot Side Charge Pipe Kit for (SDINTRPIPELMLHOT) 2011-2016 Duramax LML 6.6L
The Sinister Diesel Charge Pipe Kit for the Duramax LML 6.6L is a high-performance upgrade that replaces the restrictive factory piping, improving airflow, reducing EGTs, and enhancing engine performance. Made from durable 6061 aluminum alloy, it features smooth mandrel bends and is secured with 5-ply silicone boots and stainless steel clamps for a leak-free seal.
Sinister Diesel Intake Bridge (SDINTELLML) for 2011-2016 Duramax 6.6L LML
The Sinister Diesel LML Intake Bridge is an aftermarket upgrade for 2011–2016 GM 6.6L Duramax Diesel engines that replaces the restrictive stock piping with larger diameter, CNC mandrel-bent aluminum tubing. This design improves airflow after the throttle valve and heater, reducing restriction for better performance and faster turbo spool. It features a high-gloss blue powder coat for a visually appealing finish and offers a performance and aesthetic improvement over the stock cast aluminum component.
Sinister Diesel Injector Package (SDINJPKGLB7) for 2001-2004 Duramax LB7
Sinister Diesel’s Injector Package is designed to strengthen high-performance diesel truck engines by providing a complete set of gaskets and injectors. The package includes ARP head studs, which offer superior clamping force to prevent head gasket failure, and Mahle Motorsport Grade C head gaskets, which ensure a secure seal. The package also contains a full gasket set for all engine components sealing against the cylinder head. Additionally, it includes Sinister Diesel Remanufactured Injectors and matching High-Pressure Fuel Injector Lines, restoring OEM performance at a lower cost than factory replacements.
Sinister Diesel Reman Injector (SDINJGM11) for 2011-2016 GM Duramax LML 6.6L
The Sinister Diesel Stock Reman Injectors are reliable, cost-effective replacements that meet or exceed OEM standards. They restore fuel system performance and offer long-lasting service at a lower price than dealership options. Upgrading the fuel filtration system is recommended when replacing injectors.
Sinister Diesel Reman Injector (SDINJGM075) for 2007.5-2010 Duramax LMM 6.6L
The Sinister Diesel Reman Injector for 2007.5-2010 LMM Duramax is a high-quality remanufactured fuel injector designed to meet or exceed OEM specifications. It undergoes a rigorous remanufacturing process, including thorough inspection, cleaning, and rebuilding with premium components. Built for durability and performance, it ensures a smooth and responsive driving experience, even in demanding conditions.
Sinister Diesel Reman Injector (SDINJGM06) for 2006-2007 Duramax LBZ 6.6L
The Sinister Diesel Reman Injector for the 2006-2007 LBZ Duramax is a high-quality, remanufactured fuel injector designed to meet or exceed OEM specifications. Each injector undergoes a thorough inspection, cleaning, and rebuilding process using premium components for durability and reliability. Engineered for a smooth driving experience, it is built to withstand demanding conditions without compromise.
Sinister Diesel Reman Injector (SDINJGM045) for 2004.5-2005 Duramax LLY 6.6L
The Sinister Diesel Reman Injector for the 2004.5-2005 LLY Duramax is engineered to meet or exceed OEM standards. Each injector undergoes a rigorous remanufacturing process, including inspection, cleaning, and rebuilding with high-quality components. Designed for durability and reliability, it ensures a smooth and responsive driving experience, even in demanding conditions.
Sinister Diesel Intake Horn (SDIHL5P20) for 2020-2021 GM Duramax L5P 6.6L
The Sinister Diesel Intake Horn is a high-quality aftermarket upgrade for the 2020-2021 GM Duramax L5P, designed to improve airflow and durability. Made from 6061 aluminum, it replaces the restrictive factory plastic unit, preventing cracking and turbo issues. Its 3.5″ mandrel-bent aluminum tubing and machined billet flange ensure optimal airflow, reducing turbo surging and enhancing performance. This upgrade provides increased reliability and longevity for the Duramax air system.
All sales are final for clearance items. Only valid while supplies last.
Sinister Diesel Injector Fuel Return Line Gasket Kit (SDIFRLGKGM01) For 2001-2004 Duramax 6.6L
The Sinister Diesel Injector Fuel Return Line Gasket Kit is designed for 2001-2004 GM Duramax 6.6L engines, providing a durable and reliable seal for the injector fuel return system. It helps prevent leaks, ensures proper fuel circulation, and maintains engine performance. Made from high-quality materials, the kit withstands high temperatures and pressure, making it ideal for maintenance or part replacement.
Sinister Diesel Injector Fuel Return Hose Kit (SDIFRHKGM045) For 2004-2010 Duramax 6.6L
Sinister Diesel Injector Fuel Return Hose Kits are made to meet or exceed OEM specifications. Over time, and with exposure to heat, these hoses become brittle and prone to leaks or cracks. If you service or replace a fuel injector, make sure to replace your fuel return hose.
Sinister Diesel Heads Up Kit w/ARP Heads (SDHULML) for 2011-2015 Duramax LML
The Heads Up kits from Sinister Diesel strengthen Duramax engines (2011-2015 LML) to handle increased horsepower and torque without damage. Each kit includes an ARP Head Stud Kit (ARP2000), Grade C MLS Head Gaskets, and a complete cylinder head gasket kit. The ARP head studs provide superior clamping force (220,000 psi) for better sealing, while the multi-layered steel (MLS) head gaskets ensure durability and leak prevention.
Sinister Diesel Intake Resonator Delete Plate (SDGRSNTRDLML) for 2011-2013 Duramax 6.6L LML
Give your engine a cleaner look by covering the bulky plastic intake resonator box under the hood and rid yourself of potential cracks which can lead to dirty air intake problems.
Sinister Diesel Intake Bridge (SDGINTELLML) for 2011-2014 Duramax LML
The Sinister Diesel LML Intake Bridge improves airflow in 2011-2016 GM 6.6L Duramax engines by replacing restrictive stock piping with larger, CNC mandrel-bent aluminum tubing. This reduces intake restriction, enhancing performance and turbo spool.
Sinister Diesel Cat Fuel Filter Adaptor (SDGCATDMAX) for 2001-2016 Duramax 6.6L
The Sinister Diesel Duramax fuel filter and adapter kit upgrades the factory fuel filter on 2001-2016 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with a 6.6L Duramax V-8. It includes a Caterpillar 2-micron spin-on fuel filter, improving filtration efficiency, fuel system longevity, and reducing maintenance costs.
Sinister Diesel 5″-6″ AR-15® Exhaust Tip (SDEXHSTAR56) Universal
The Sinister Diesel AR-15 exhaust tip is designed to resemble the quad-rail handguard of an AR-15 rifle. Made of stainless steel with a powder-coated finish, it features a 5-inch inlet and 6-inch outlet for compatibility with diesel truck exhaust systems. Its dual-wall design helps with heat dissipation, and installation is quick and easy with basic tools.
Sinister Diesel 4″-6″ AR-15® Exhaust Tip (SDEXHSTAR46) Universal
The Sinister Diesel AR-15 exhaust tip is designed to resemble the quad-rail handguard of an AR-15 rifle. Made of stainless steel with a powder-coated finish, it features a 4-inch inlet and 6-inch outlet for compatibility with diesel truck exhaust systems. Its dual-wall design helps with heat dissipation, and installation is quick and easy with basic tools.
Sinister Diesel 4″-5″ AR-15® Exhaust Tip (SDEXHSTAR45) Universal
The Sinister Diesel AR-15 exhaust tip is designed to resemble the quad-rail handguard of an AR-15 rifle. Made of stainless steel with a powder-coated finish, it features a 4-inch inlet and 5-inch outlet for compatibility with diesel truck exhaust systems. Its dual-wall design helps with heat dissipation, and installation is quick and easy with basic tools.
Sinister Diesel Dual Wall Exhaust Tip w/angle Cut 5″-8″ Chrome (SDETAC58P) Universal
The Sinister Diesel Dual Wall Exhaust Tip adds a bold look to any vehicle with a 5″ exhaust tailpipe, including Powerstroke, Cummins, and Duramax. Made from corrosion-resistant stainless steel for durability, it expands the exhaust outlet from 5″ to 8″ with a rounded edge. A high-quality chrome finish helps conceal soot, while a riveted Sinister Diesel logo completes the design.
Sinister Diesel Dual Wall Exhaust Tip w/angle Cut 5″-8″ Blue (SDETAC58BLU) Universal
The Sinister Diesel Dual Wall Exhaust Tip adds a bold look to any vehicle with a 5″ exhaust tailpipe, including Powerstroke, Cummins, and Duramax. Made from corrosion-resistant stainless steel for durability, it expands the exhaust outlet from 5″ to 8″ with a rounded edge. A high-quality Sinister Diesel Blue finish helps conceal soot, while a riveted Sinister Diesel logo completes the design.
Due to high demand, we are currently experiencing long lead times on this product
