Collection: DURAMAX DIESEL PERFORMANCE PARTS
Unlock the Full Potential of Your Duramax with Premium Parts
Maximize your truck’s performance, reliability, and efficiency with our high-performance aftermarket Duramax parts and accessories.
Our selection of Duramax diesel performance parts is perfect for truck drivers who regularly demand more—more power, more torque, and more...
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ATS Stage 2 Allison LCT1000 Transmission Package 2WD 2011-2016 6.6L LML Duramax
Regular price $6,994.99 USDSale price $6,994.99 USD Regular priceUnit price / per -
ATS TCM Upgrade, A40 / A50 to T87A, 2011-2014 GM 6.6L Duramax
Regular price $1,994.99 USDSale price $1,994.99 USD Regular priceUnit price / per -
ATS Stage 3 Allison LCT1000 Transmission Package 2WD 2007.5-2010 6.6L LMM Duramax
Regular price $7,809.99 USDSale price $7,809.99 USD Regular priceUnit price / per -
ATS Harness Adapter for Benchtop Calibrator Fits VGT Duramax LP5 Turbocharger Actuators
Regular price $121.04 USDSale price $121.04 USD Regular priceUnit price / per -
ATS Stage 3 Allison LCT1000 Transmission Package 4WD w/ PTO 2004.5-2005 6.6L LLY Duramax
Regular price $7,809.99 USDSale price $7,809.99 USD Regular priceUnit price / per -
ATS TCM Upgrade 2WD A50 to T87 15 GM 6.6L Duramax ATS Diesel Performance
Regular price $1,995.00 USDSale price $1,995.00 USD Regular priceUnit price / per -
ATS Stage 4 Allison LCT1000 Transmission Package 4WD w/ PTO 2011-2016 6.6L LML Duramax
Regular price $8,579.99 USDSale price $8,579.99 USD Regular priceUnit price / per -
ATS Stage 4 Allison LCT1000 Transmission Package 4WD 2004.5-2005 6.6L LLY Duramax
Regular price $8,579.99 USDSale price $8,579.99 USD Regular priceUnit price / per -
ATS Stage 5 Allison LCT1000 Transmission Package 2WD 2011-2016 6.6L LML Duramax
Regular price $10,514.99 USDSale price $10,514.99 USD Regular priceUnit price / per -
ATS Stage 2 Allison LCT1000 Transmission Package 4WD 2006-2007 6.6L LLY / LBZ / LMM Duramax
Regular price $6,994.99 USDSale price $6,994.99 USD Regular priceUnit price / per -
50 State LML Duramax CP3 Conversions 2011-2016 W/pump Carb Exempt No Tuning Req D Each S&S Diesel
Regular price $2,600.00 USDSale price $2,600.00 USD Regular priceUnit price / per -
LML Duramax CP3 Conversions 2011-2016 Kit Competition Use Only S&S Diesel
Regular price From $800.00 USDSale price From $800.00 USD Regular priceUnit price / per -
Duramax CP3 6.6 Liter 2001-2025 New LBZ Based For Use On LB7 LML Dual CP3 Kit Etc CAN T Be Sold As Stock LBZ S&S Diesel
Regular price $1,086.00 USDSale price $1,086.00 USD Regular priceUnit price / per -
Duramax Supersport CP3 (higher Output >3500rpm) 6.6 Liter 2001-2025 New LBZ-Based S&S Diesel
Regular price $1,273.00 USDSale price $1,273.00 USD Regular priceUnit price / per -
2017-2026 L5P Duramax CP3 Conversion Kit Competition Use Only S&S Diesel
Regular price From $3,204.00 USDSale price From $3,204.00 USD Regular priceUnit price / per -
Duramax Mm3 /Rev Displacement) 6.6 Liter 2001-2025 LBZ-Based S&S Diesel
Regular price From $2,143.00 USDSale price From $2,143.00 USD Regular priceUnit price / per -
Titanium Signature Series Plus Fuel System for 2020-2023 GM Duramax 6.6L (900-1200hp) FASS
Regular price $949.00 USDSale price $949.00 USD Regular priceUnit price / per$998.95 USDSale -
Titanium Signature Series Plus Fuel System for 2017-2019 Duramax (500-900hp) FASS
Regular price $899.00 USDSale price $899.00 USD Regular priceUnit price / per$946.32 USDSale -
Titanium Signature Series Plus Fuel System for 2001-2010 Silverado/Sierra Duramax 6.6L (900-1200hp) FASS
Regular price $849.00 USDSale price $849.00 USD Regular priceUnit price / per$893.68 USDSale -
Titanium Signature Series Plus Fuel System for 2020-2023 GM Duramax 6.6L (500-900hp) FASS
Regular price $899.00 USDSale price $899.00 USD Regular priceUnit price / per$946.32 USDSale -
Titanium Signature Series Plus Fuel System for 2015-2016 Silverado/Sierra Duramax 6.6L (600-1000hp) FASS
Regular price $779.00 USDSale price $779.00 USD Regular priceUnit price / per$820.00 USDSale -
Titanium Signature Series Plus Fuel System for 2017-2019 Silverado/Sierra Duramax 6.6L (Stock-500hp) FASS
Regular price $849.00 USDSale price $849.00 USD Regular priceUnit price / per$893.68 USDSale -
Titanium Signature Series Plus Fuel System for 2001-2010 Silverado/Sierra Duramax 6.6L (1200-1500hp) FASS
Regular price $899.00 USDSale price $899.00 USD Regular priceUnit price / per$946.32 USDSale -
Titanium Signature Series Plus Fuel System for 2001-2010 Silverado/Sierra Duramax 6.6L (Stock-600hp) FASS
Regular price $739.00 USDSale price $739.00 USD Regular priceUnit price / per$777.89 USDSale -
Titanium Signature Series Plus Fuel System for 2017-2019 Duramax (900-1200hp) FASS
Regular price $949.00 USDSale price $949.00 USD Regular priceUnit price / per$998.95 USDSale -
Titanium Signature Series Plus Fuel System for 2011-2014 Silverado/Sierra Duramax 6.6L (600-1000HP) FASS
Regular price $779.00 USDSale price $779.00 USD Regular priceUnit price / per$820.00 USDSale -
Titanium Signature Series Plus Fuel System for 2015-2016 Silverado/Sierra Duramax 6.6L (Stock-600hp) FASS
Regular price $749.00 USDSale price $749.00 USD Regular priceUnit price / per$788.42 USDSale -
FASS TSC12165G Titanium Signature Series Diesel Fuel System 165GPH GM Duramax 6.6L 2015-2016
Regular price $754.00 USDSale price $754.00 USD Regular priceUnit price / per$793.68 USDSale
Unlock the Full Potential of Your Duramax with Premium Parts
Maximize your truck’s performance, reliability, and efficiency with our high-performance aftermarket Duramax parts and accessories.
Our selection of Duramax diesel performance parts is perfect for truck drivers who regularly demand more—more power, more torque, and more efficiency. Stop letting factory settings hold you back. Upgrade your rig with high-flow exhaust systems that let the engine breathe, advanced tuners to remap your fuel strategy, and reinforced engine components that know how to handle that extra muscle.
We know your truck is more than just a vehicle; it's a powerhouse that works as hard as you do. That’s why we source only top-tier Duramax accessories that deliver serious gains you can feel with every press of the pedal. Whether you're hauling heavy loads or just want to dominate the highway, our Duramax diesel performance parts provide the raw strength and reliability you need to keep your beast roaring.



























