Collection: 2001-2004 6.6L LB7 Duramax Engine & Performance
Top shelf American made products that take your ride to the next level!
“Quality is never an accident; it is always the result of high intention, sincere effort, intelligent direction and skillful execution; it represents the wise choice of many alternatives.” - William A. Foster
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Fleece Performance LB7 High Pressure Injection Line for 01-04 Duramax LB& (4 and 5) Fleece FPE-FL-LB7-45
Regular price $68.99 USDSale price $68.99 USD Regular priceUnit price per -
Fleece Performance LB7 High Pressure Injection Line (3 and 6) For 01-04 Duramax LB7 Fleece FPE-FL-LB7-36
Regular price $68.99 USDSale price $68.99 USD Regular priceUnit price per -
Fleece Performance LB7 High Pressure Injection Line (2 and 7) For 01-04 Duramax LB7 Fleece FPE-FL-LB7-27
Regular price $68.99 USDSale price $68.99 USD Regular priceUnit price per -
Fleece Performance LB7 High Pressure Injection Line (1 and 8) Fleece FPE-FL-LB7-18
Regular price $68.99 USDSale price $68.99 USD Regular priceUnit price per -
Fleece Performance LB7 Duramax Outer Injector Connector Pigtail FPE-HAR-DMAX-LB7-INJ-PT
Regular price $31.49 USDSale price $31.49 USD Regular priceUnit price per -
Fleece Performance LB7 Duramax Intake Air Heater Delete Plug FPE-LB7-IAH-DELETE
Regular price $37.95 USDSale price $37.95 USD Regular priceUnit price per -
Fleece Performance FPE-61-10001-P-CL Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Passenger Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price per -
Fleece Performance FPE-61-10001-D-CL Freedom Series Duramax Cylinder Head with Cupless Injector Bore for 2001-2004 LB7 (Driver Side)
Regular price $1,199.00 USDSale price $1,199.00 USD Regular priceUnit price per -
FASS Titanium Signature Series Diesel Fuel System 290GPH GM Duramax 6.6L 2001-2016
Regular price $874.00 USDSale price $874.00 USD Regular priceUnit price per -
FASS Titanium Signature Series Diesel Fuel System 165GPH GM Duramax 6.6L 2001-2010
Regular price $754.00 USDSale price $754.00 USD Regular priceUnit price per -
FASS Titanium Signature Series Diesel Fuel System 100GPH GM Duramax 6.6L 2001-2010
Regular price $714.00 USDSale price $714.00 USD Regular priceUnit price per -
FASS PF3001XL Extended Length Particulate Filter
Regular price $25.53 USDSale price $25.53 USD Regular priceUnit price per -
FASS Particulate Filter PF3001
Regular price $22.47 USDSale price $22.47 USD Regular priceUnit price per -
FASS FASC09290G Adjustable Diesel Fuel Lift Pump 290GPH GM Duramax 6.6L 2001-2016
Regular price $806.00 USDSale price $806.00 USD Regular priceUnit price per -
FASS FASC09250G Adjustable Diesel Fuel Lift Pump 250GPH GM Duramax 6.6L 2001-2016
Regular price $752.00 USDSale price $752.00 USD Regular priceUnit price per -
FASS FASC09165G Adjustable Diesel Fuel Lift Pump 165GPH GM Duramax 6.6L 2001-2016
Regular price $644.00 USDSale price $644.00 USD Regular priceUnit price per -
FASS FASC09100G Adjustable Diesel Fuel Lift Pump 100GPH GM Duramax 6.6L 2001-2016
Regular price $591.00 USDSale price $591.00 USD Regular priceUnit price per -
FASS DFD4000 Duramax Factory Fuel Filter Delete Kit 2001-2016
Regular price $83.74 USDSale price $83.74 USD Regular priceUnit price per -
Fleece Performance Duramax Oil Pressure Sensor Pigtail LB7 FPE-HAR-DMAX-OP-0102
Regular price $19.94 USDSale price $19.94 USD Regular priceUnit price per -
S&B Filters Cold Air Intake For 01-04 Chevrolet Silverado GMC Sierra V8-6.6L LB7 Duramax Cotton Cleanable Red 75-5101
Regular price $379.00 USDSale price $379.00 USD Regular priceUnit price per -
S&B 10-1013 65-Gallon Replacement Fuel Tank
Regular price $1,449.00 USDSale price $1,449.00 USD Regular priceUnit price per -
Fleece Performance 6.6L Duramax Stage 2 Pushrods, 0.875 inch dia FPE-DUR-S2-PROD
Regular price $490.19 USDSale price $490.19 USD Regular priceUnit price per -
Fleece Performance 2003-2005 GM/Allison TapShifter FPE-TAPSHIFTER35
Regular price $399.00 USDSale price $399.00 USD Regular priceUnit price per -
Fleece Performance 2001-2016 GM Fuel Primer Bulb Sealing Kit 2001-2016 GM 2500/3500 FPE-GM-FFPD-0116
Regular price $49.99 USDSale price $49.99 USD Regular priceUnit price per -
Fleece Performance 2001-2016 Duramax Oil Cap Red FPE-DMAX-OC-RED
Regular price $39.99 USDSale price $39.99 USD Regular priceUnit price per -
Fleece Performance 2001-2016 Duramax Oil Cap Blue FPE-DMAX-OC-BLU
Regular price $39.99 USDSale price $39.99 USD Regular priceUnit price per -
Fleece Performance 2001-2016 Duramax Oil Cap Black FPE-DMAX-OC-BLK
Regular price $39.99 USDSale price $39.99 USD Regular priceUnit price per -
Gator Fasteners 2001-05 Chevy/GMC 6.6L LB7 LLY Duramax Gator Heavy Duty Main Stud Kit MSK667Y
Regular price $232.64 USDSale price $232.64 USD Regular priceUnit price per$299.24 USDSale
