Collection: 2020-2024 6.6L L5P Duramax Fuel System Upgrades
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Fleece Performance '-6 to 9/16 inch-18 Straight Male Black Fleece Performance w/ O-Ring FPE-APT-916-06
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price per -
Fleece Performance 3/8 Inch CP3 Return Fitting FPE-CP3-RTRN
Regular price $15.95 USDSale price $15.95 USD Regular priceUnit price per -
Fleece Performance 3/8 Inch Black Anodized Aluminum Y Barbed Fitting (For -6 Pushlock Hose) FPE-FIT-Y06-BLK
Regular price $23.99 USDSale price $23.99 USD Regular priceUnit price per -
Fleece Performance 1/2 Inch Black Anodized Aluminum Y Barbed Fitting (For -8 Pushlock Hose) FPE-FIT-Y08-BLK
Regular price $24.99 USDSale price $24.99 USD Regular priceUnit price per -
Fleece Performance Fuel Pressure Regulator and Multiuse Pigtail FPE-HAR-FPR-PT
Regular price $27.99 USDSale price $27.99 USD Regular priceUnit price per -
Fleece Performance Replacement Fuel Injector Connector With Pigtail for L5P Duramax FPE-HAR-L5P-INJ-PT
Regular price $59.99 USDSale price $59.99 USD Regular priceUnit price per -
Fleece Performance Replacement Fuel Injector Connector With Pigtail for L5P Duramax - 4 pack FPE-HAR-L5P-INJ-PT-4P
Regular price $179.99 USDSale price $179.99 USD Regular priceUnit price per -
Fleece Performance Replacement Fuel Injector Connector With Pigtail for L5P Duramax - 8 pack FPE-HAR-L5P-INJ-PT-8P
Regular price $299.99 USDSale price $299.99 USD Regular priceUnit price per -
Fleece Performance Replacement Sensor Connector With Pigtail for L5P Duramax and GM Vehicles (L5P Duramax Sensor Pigtail 1) FPE-HAR-MU-PT-1
Regular price $37.99 USDSale price $37.99 USD Regular priceUnit price per -
Fleece Performance Multiuse Sensor 6 Inch Pigtail FPE-HAR-MU-PT-5
Regular price $19.99 USDSale price $19.99 USD Regular priceUnit price per -
Fleece Performance Multiuse Pressure Sensor 36 Inch Pigtail FPE-HAR-MU-PT-6
Regular price $24.99 USDSale price $24.99 USD Regular priceUnit price per -
Fleece Performance Multi-Use Sensor Pigtail - No 8 FPE-HAR-MU-PT-8
Regular price $14.99 USDSale price $14.99 USD Regular priceUnit price per -
Fleece Performance 18 Inch Rail Pressure Sensor Extension Harness FPE-HAR-RP-EXT
Regular price $43.04 USDSale price $43.04 USD Regular priceUnit price per -
Fleece Performance Rail Pressure Sensor 6 Inch Pigtail FPE-HAR-RP-PT
Regular price $25.99 USDSale price $25.99 USD Regular priceUnit price per -
Fleece Performance 1/2 Inch NPT Hex Socket Plug Black FPE-NPT-12
Regular price $4.49 USDSale price $4.49 USD Regular priceUnit price per -
Fleece Performance 1/4 Inch NPT Hex Socket Plug Black FPE-NPT-14
Regular price $2.99 USDSale price $2.99 USD Regular priceUnit price per -
Fleece Performance 1/8 Inch NPT Hex Socket Plug Black FPE-NPT-18
Regular price $2.99 USDSale price $2.99 USD Regular priceUnit price per -
Fleece Performance 3/4 Inch NPT Hex Socket Plug Black FPE-NPT-34
Regular price $4.99 USDSale price $4.99 USD Regular priceUnit price per -
Fleece Performance 3/8 Inch NPT Hex Socket Plug Black FPE-NPT-38
Regular price $2.99 USDSale price $2.99 USD Regular priceUnit price per -
Fleece Performance '-6 AN Straight to Hose Barb FPE-PL-00-06
Regular price $6.99 USDSale price $6.99 USD Regular priceUnit price per -
Fleece Performance '-8 Straight to Hose Barb Black FPE-PL-00-08
Regular price $7.99 USDSale price $7.99 USD Regular priceUnit price per -
Fleece Performance '-6 90 Deg to Hose Barb Black FPE-PL-90-06
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price per -
Fleece Performance '-8 90 Degree to Hose Barb Black FPE-PL-90-08
Regular price $13.99 USDSale price $13.99 USD Regular priceUnit price per -
FASS Adjustable Fuel Pressure Regulator
Regular price $141.55 USDSale price $141.55 USD Regular priceUnit price per -
FASS High Output Heater Disk
Regular price $160.55 USDSale price $160.55 USD Regular priceUnit price per -
Fleece Performance FPE-PL-45-06 6AN 45-Degree to Hose Barb – Black
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price per -
Fleece Performance '-8 45 Degree to Hose Barb Black FPE-PL-45-08
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price per -
Fleece Performance -10 90 Deg to Hose Barb Black FPE-PL-90-10
Regular price $14.99 USDSale price $14.99 USD Regular priceUnit price per
