
Collection: 2004.5-2005 6.6L LLY Duramax Fuel System Upgrades
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S&S Diesel High-Performance Injectors for 2004.5-2005 Chevy/GMC LLY Duramax
Regular price From $2,610.00 USDSale price From $2,610.00 USD Regular priceUnit price / per -
Exergy Performance 2004.5-2005 LLY Duramax Stock Replacement Fuel Rail
Regular price From $220.00 USDSale price From $220.00 USD Regular priceUnit price / per -
S&S Diesel CP3 Fuel Injection Pump for 2001-2024 Chevy/GMC 6.6L Duramax
Regular price From $950.00 USDSale price From $950.00 USD Regular priceUnit price / per -
Exergy Performance 2004.5-2005 LLY Duramax 10mm Stroker CP3 Pump
Regular price $2,150.00 USDSale price $2,150.00 USD Regular priceUnit price / per -
Exergy Performance 2004.5-2005 LLY Duramax 12mm Stroker CP3 Pump
Regular price $2,650.00 USDSale price $2,650.00 USD Regular priceUnit price / per -
Exergy Performance 2004.5-2005 LLY Duramax 14mm Stroker CP3 Pump
Regular price $3,200.00 USDSale price $3,200.00 USD Regular priceUnit price / per -
Exergy Performance 2004.5-2005 LLY Duramax Sportsman CP3 Pump
Regular price $1,270.00 USDSale price $1,270.00 USD Regular priceUnit price / per -
Fleece Performance FPE-DMAX-CP3 New Bosch CP3 for 2001-2016 Duramax
Regular price $1,279.00 USDSale price $1,279.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 100GPH GM Duramax 6.6L 2001-2010
Regular price $689.00 USDSale price $689.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 165GPH GM Duramax 6.6L 2001-2010
Regular price $729.00 USDSale price $729.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 250GPH GM Duramax 6.6L 2001-2016
Regular price $799.00 USDSale price $799.00 USD Regular priceUnit price / per -
FASS Titanium Signature Series Diesel Fuel System 290GPH GM Duramax 6.6L 2001-2016
Regular price $849.00 USDSale price $849.00 USD Regular priceUnit price / per -
FASS Fuel Systems COMP330G Competition Series 330GPH (30 PSI MAX)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price / per -
FASS Fuel Systems COMP360G Competition Series 360GPH (100 PSI MAX)
Regular price $1,279.00 USDSale price $1,279.00 USD Regular priceUnit price / per -
FASS Fuel Systems COMP540G Competition Series 540GPH (70 PSI MAX)
Regular price $1,349.00 USDSale price $1,349.00 USD Regular priceUnit price / per -
FASS Fuel Systems Diesel Fuel Sump Kit (SK5501)
Regular price $169.00 USDSale price $169.00 USD Regular priceUnit price / per$177.89 USDSale -
PPE 2004.5-2016 Duramax w/ PPE Dual Fueler - High-Performance Heavy-Duty Serpentine Belt
Regular price $49.49 USDSale price $49.49 USD Regular priceUnit price / per$54.99 USDSale -
FASS XWS3002 Extreme Water Separator
Regular price $29.45 USDSale price $29.45 USD Regular priceUnit price / per -
FASS Fuel Systems Filter Pack FP3000
Regular price $99.00 USDSale price $99.00 USD Regular priceUnit price / per -
Fleece Performance '-8 to 3/4 Inch-16 Straight Male Black w/ O-Ring FPE-APT-34-08
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per -
Fleece Performance 24 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-24
Regular price $76.00 USDSale price $76.00 USD Regular priceUnit price / per -
FASS STK1005 Diesel Fuel Bulkhead and Viton Suction Tube Kit
Regular price $94.05 USDSale price $94.05 USD Regular priceUnit price / per -
Fleece Performance FPE-FL-DMAX-LLY-SET High-Pressure Injection Line Kit for LLY Duramax
Regular price $489.00 USDSale price $489.00 USD Regular priceUnit price / per -
Fleece Performance FPE-SF-GM-0410 SureFlo® Performance Sending Unit for 2004.5-2010 Duramax
Regular price $359.00 USDSale price $359.00 USD Regular priceUnit price / per -
Fleece Performance FPE-DMAX-CP3K Duramax CP3K
Regular price $1,363.95 USDSale price $1,363.95 USD Regular priceUnit price / per -
Fleece Performance FPE-DMAX-CP3-10MM PowerFlo 750 CP3 Pump
Regular price $1,999.00 USDSale price $1,999.00 USD Regular priceUnit price / per -
PPE 2001-2010 GM 6.6L Duramax Fuel Rail Pressure Harness
Regular price $44.99 USDSale price $44.99 USD Regular priceUnit price / per$49.99 USDSale -
PPE 2001-2005 GM 6.6L Duramax Fuel Rail Mount Kit - GM 6.6L Duramax
Regular price $41.39 USDSale price $41.39 USD Regular priceUnit price / per$45.99 USDSale
2004.5-2005 6.6L LLY Duramax Fuel System Upgrades
Boost the performance and efficiency of your 2004.5-2005 6.6L LLY Duramax with our top-tier fuel system upgrades. Designed to improve fuel delivery, optimize combustion, and increase horsepower, these components are essential for drivers looking to push their Duramax to its full potential. Whether you're aiming for better towing performance, more power for off-roading, or improved fuel economy, our fuel system upgrades provide the performance and reliability you need.
High-Performance Fuel System Upgrades for 6.6L LLY Duramax
Our fuel system components for the 2004.5-2005 6.6L LLY Duramax are engineered to maximize fuel flow and improve overall engine efficiency. These upgrades include high-flow fuel injectors, fuel pumps, filters, and other critical components designed to deliver more consistent fuel delivery and better fuel atomization. With these parts, you’ll experience smoother acceleration, improved power output, and optimized fuel efficiency.
Why Choose Our Fuel System Upgrades?
Upgrading your fuel system ensures that your engine receives the proper fuel flow to maximize performance. Whether you’re increasing horsepower for heavy towing, seeking a more responsive throttle, or just looking to improve your truck’s efficiency, these upgrades provide the solution. Our high-performance fuel components will improve combustion efficiency and ensure that your engine is getting the clean, high-quality fuel it needs.
Key Features:
- Increased Fuel Flow: High-flow injectors and pumps provide the fuel your engine needs for optimal performance.
- Enhanced Efficiency: Improved fuel delivery and atomization lead to better combustion, fuel economy, and engine response.
- Reliability: Built to withstand extreme conditions and improve the lifespan of your Duramax fuel system.