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Fleece Performance Brand

428 products
Fleece Performance Engineering is a leading manufacturer of aftermarket diesel performance products. With a reputation for innovation, quality, and service, our products push the limits of diesel performance technology. Products such as the Cheetah line of Turbochargers, the TapShifter, and the TurboBrake have established Fleece Performance as an industry innovator.
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Fleece | 2003-2005 Dodge Ram 2500 / 3500 Cummins 4-Pin to 6-Pin Valve Cover Conversion Harness (2006-2018) Fleece | 2003-2005 Dodge Ram 2500 / 3500 Cummins 4-Pin to 6-Pin Valve Cover Conversion Harness (2006-2018)
$199.00
$199.00
Convert your 2003-2005 Ram with 4-pin injector connectors to the 2006-2018 6-pin injector connectors with our plug-and-play conversion harness.  This conversion harness is for use on a 2003-2005 ...
Fleece | 2003-2007 Dodge Ram 5.9 To 6.7 Cummins CP3 HP Fuel Line Adaptation Kit
$171.00
$171.00
Convert your 5.9L CP3 to a newer 6.7L CP3 style pump with our Fleece Performance exclusive 5.9L to 6.7L adaptation kit.  The kit includes a new high-pressure fuel line, high flow feed and return fi...
Fleece Performance | 2017-2022 GM 2500 / 3500 Duramax Replacement Fuel Injector Connector With Pigtail - 4 Pack Fleece | 2017-2022 GM 2500 / 3500 6.6L L5P Duramax Replacement Fuel Injector Connector With Pigtail - 4 Pack
$256.00
$256.00
A common failure point on the L5P Duramax, our replacement connector with 4.5" pigtail for the fuel injectors will get you back on the road quickly.  This connector is typically replaced during an ...
Fleece Performance | 2003-2012 Dodge Ram 2500 / 3500 5.9 / 6.7 Cummins Cooling Fan Pigtail
$95.00
$95.00
Replacement connectors with 6" pigtail on either end for use on the Cummins engine and other vehicle applications. Produced in-house, our manufacturing process includes fully automated wire cutting...
Fleece Performance | 2011-2016 GM 2500 / 3500 Duramax LML Fan Extension Harness
$78.00
$78.00
Our replacement fan extension harness for the 2011-2016 LML 6.6L Duramax allows you to repair a broken or damaged harness without needing to replace the entire fan and clutch assembly.  This harnes...
FLEECE PERFORMANCE | 2017-2022 GM L5P DURAMAX MAP SENSOR SPACER WITH BOOST REFERENCE PORT Fleece | 2017-2022 GM L5P Duramax Map Sensor Spacer With Boost Reference Port
$106.00
$106.00
All new Fleece Performance MAP sensor spacer with boost reference port for the L5P Duramax.    Problem: Because of the direct placement of the MAP sensor into the intake air stream from the fact...