Collection:

Fleece Performance Brand

410 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.
Product Type Show all Product Type
Price
  • -
Show all Price
Regular price $59.99
Sale price $59.99
Regular price
Unit price
per 
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...
Regular price $45.99
Sale price $45.99
Regular price
Unit price
per 
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...
Regular price $329.99
Sale price $329.99
Regular price
Unit price
per 
Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our kit is the most complete replacement transmission line kit available for your LML truck!  ...
Regular price $399.00
Sale price $399.00
Regular price
Unit price
per 
If you are looking to do an aftermarket turbo set up or compound turbo set up then this kit is a must! Our A/C line reroute kit allows you to create additional room to get your kit installed proper...
Regular price $379.99
Sale price $379.99
Regular price
Unit price
per 
Just in time for Summer! Our all-new Fleece Performance coolant bypass for the RAM with 6.7L Cummins! Our patent pending design seamlessly integrates with your truck for an OE fit-and-finish.  FEAT...
Regular price $19.99
Sale price $19.99
Regular price
Unit price
per 
The Cummins turbo drain tube adapter is made from high quality 6061 aluminum and anodized black for a superior appearance. It fits into the engine block drain tube location just like the factory dr...