Collection: Fleece Performance Engineering
Fleece Performance – Premium Diesel Performance Parts & Upgrades
Fleece Performance is a pioneer in the diesel performance industry, offering high-quality, innovative parts designed to enhance power, efficiency, and reliability. Whether you own a Cummins, Duramax, or Power Stroke engine, our products are engineered to deliver superior performance, meeting the...
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Fleece Performance FPE-61-10007-HD 6.7L Freedom Series Cummins Cylinder Head (Street-HD)
Regular price $2,599.00 USDSale price $2,599.00 USD Regular priceUnit price / per -
Fleece Performance FPE-PS-FMW-63-1518 63mm FMW Cheetah Turbocharger for 2015-2019 6.7L Powerstroke
5.0 / 5.0
(1) 1 total reviews
Regular price $2,699.00 USDSale price $2,699.00 USD Regular priceUnit price / per -
Fleece Performance FPE-61-10007 6.7L Freedom Series Cummins Cylinder Head (Street)
Regular price $2,199.00 USDSale price $2,199.00 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 -
Fleece Performance 6 Inch 45 Degree Hood Stack Cover FPE-HSC-6-45
Regular price $41.99 USDSale price $41.99 USD Regular priceUnit price / per -
Fleece Performance 5 Speed Allison Kodiak/TopKick TapShifter FPE-TAPSHIFTER-KDTK
Regular price $349.00 USDSale price $349.00 USD Regular priceUnit price / per -
Upgraded Replacement Coolant Tank for 2019-2024 Ram Pickups with 6.7L Cummins
Regular price $485.00 USDSale price $485.00 USD Regular priceUnit price / per -
Fleece Performance Upper Gasket Set for MY 2007.5-2018 6.7L Cummins (no head gasket)
Regular price $280.00 USDSale price $280.00 USD Regular priceUnit price / per -
Fleece Performance Upper Gasket Kit for MY 2007.5-2018 6.7L Cummins (with head gasket)
Regular price $399.99 USDSale price $399.99 USD Regular priceUnit price / per -
Fleece Performance OE Replacement Head Gasket for 6.7L Cummins (Standard Thickness)
Regular price $119.99 USDSale price $119.99 USD Regular priceUnit price / per -
Fleece Performance Cold Weather Upgrade Kit for 2007.5–2024 6.7L Cummins
Regular price $109.99 USDSale price $109.99 USD Regular priceUnit price / per -
Cheetah Turbocharger – 2017–2023 L5P Duramax
Regular price $2,399.00 USDSale price $2,399.00 USD Regular priceUnit price / per$2,499.00 USDSale -
Fleece Performance Charging Circuit Harness for 2020–2022 Ford 6.7L Power Stroke
Regular price $125.99 USDSale price $125.99 USD Regular priceUnit price / per -
Fleece Performance NSBU Pigtail for 2004.5–2005 GM 2500/3500 Duramax with Allison Transmission
Regular price $69.99 USDSale price $69.99 USD Regular priceUnit price / per -
Fleece Performance NSBU Pigtail for 2001–2004 GM 2500/3500 Duramax with Allison Transmission
Regular price $79.99 USDSale price $79.99 USD Regular priceUnit price / per -
Fleece Performance - MAF Sensor Pigtail Repairs for 2011 to 2016 6.6L Duramax
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per -
Fleece Performance 4-Pin Valve Cover Injector Pigtail For 2003-2005 Dodge Ram 2500/3500 Cummins
Regular price $29.99 USDSale price $29.99 USD Regular priceUnit price / per -
Donaldson P551329 Replacement Fuel Filter – Case of 12
Regular price $263.54 USDSale price $263.54 USD Regular priceUnit price / per -
Donaldson P551329 Substitute Fuel Filter – Spin-On Water Separator
Regular price $22.99 USDSale price $22.99 USD Regular priceUnit price / per -
Fleece Performance Secondary MAP Sensor Spacer for 2024+ L5P Duramax
Regular price $72.44 USDSale price $72.44 USD Regular priceUnit price / per -
Fleece Performance Heated Seat Module Pigtail
Regular price $59.84 USDSale price $59.84 USD Regular priceUnit price / per -
Fleece Performance Fuel Rail Pressure Sensor Pigtail for 2013–2024 Cummins
Regular price $59.84 USDSale price $59.84 USD Regular priceUnit price / per -
Fleece Performance Charging Circuit Harness for 2017–2018 Ford 6.7L Power Stroke
Regular price $132.29 USDSale price $132.29 USD Regular priceUnit price / per -
Fleece Service Kit for FPE-FMC-FF-RLK-1116-SER
Regular price $9.99 USDSale price $9.99 USD Regular priceUnit price / per -
Fleece -4AN to 3/32" ID Hose Barb FPE-4AN-3-32HB
Regular price $18.99 USDSale price $18.99 USD Regular priceUnit price / per -
Fleece Service Kit for FPE-FMC-FF-RLK-1724
Regular price $14.75 USDSale price $14.75 USD Regular priceUnit price / per -
Fleece Injector Return Line Repair Kit for 2017-2024 Power Stroke
Regular price From $64.99 USDSale price From $64.99 USD Regular priceUnit price / per -
Fleece Performance Under Bed Filter For 2011-2016 Ford 6.7L Power Stroke FPE-FMC-FFUB-1116
Regular price $49.99 USDSale price $49.99 USD Regular priceUnit price / per
Unleash the Power of Diesel Trucks with Fleece Performance Engineering!
Discover the pinnacle of diesel performance with Fleece Performance Engineering's cutting-edge parts. Experience unrivaled power, efficiency, and excellence as you take your truck to new heights of performance. Our precision-engineered products ensure seamless integration, making every ride a seamless joy. Say goodbye to average and embrace extraordinary acceleration, towing prowess, and fuel efficiency.
Join the league of truck owners who dominate the road and conquer tough terrains effortlessly. Fueled by our commitment to excellence and innovation, Fleece Performance Engineering offers you a lasting partnership for all your diesel needs.
Upgrade your diesel truck today and embrace a new era of diesel dominance. Order your Fleece Performance Engineering products now and unleash the true potential of your truck!


















