Fleece Performance

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9L Cummins suffer from a lack of coolant flow, and therefore, ex...

The Fleece Performance CP3K for the 5.9L Cummins is a modified 6.7L CP3 designed to eliminate the factory fuel flow restriction that begins at 3,...

Introducing our Freedom Series Cummins Performance cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machi...

The Fleece Performance PowerFlo 750 CP3 for the 5.9L Cummins is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP w...

Introducing our Freedom Series cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guarante...

Auxiliary fuel filter and line kit for your 2003-2018 Dodge Cummins.  The kit includes everything you need to properly route, plumb and filter fu...

Introducing our all-new full featured auxiliary fuel filter kit for the 2003-2018 Dodge Cummins.  This kit builds off our standard auxiliary kit ...

Fleece Performance Cheetah Turbochargers set the industry standard for power, quality, and reliability. The Cheetah series does not require an ex...

  The Duramax VNT Cheetah Turbocharger is a drop-in replacement turbocharger for 04.5-10 Duramax diesels. It comes with a Fleece Performance 63mm...

PROBLEM: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fu...

The PowerFlo lift pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance.  The PowerFlo is the o...

Increased Coolant Flow, Decreased Coolant Temperatures The rear cylinders on the 5.9/6.7L Cummins suffer from a lack of coolant flow, and therefore...

DESCRIPTION Fleece Performance Cheetah Turbochargers set the industry standard for power, quality, and reliability. The Cheetah series does not r...

The Fleece Performance Dual Pump Kit Hardware Kit for the 6.7L Cummins is designed to fit perfectly and comes with everything you need to get the...

The Fleece Performance coolant bypass for the 2007.5-2012 RAM with 6.7L Cummins seamlessly integrates with your truck for an OE fit-and-finish.  ...

Introducing our Freedom Series cylinder heads - Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guarant...

The Fleece Performance CP3K for the 6.7L Cummins is a new CP3 modified to eliminate the factory fuel flow restriction that begins at 3,000 RPM. I...

Introducing our Freedom Series Cummins Performance cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machi...

The Fleece Performance PowerFlo 750 CP3 for the 6.7L Cummins is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP w...

Introducing our Freedom Series cylinder heads. Each cylinder head is manufactured in our state-of-the-art cylinder head machine shop and guarante...

PROBLEM: If you are running an aftermarket pump that is mounted external of the fuel tank, you will need to install a draw straw or drill your fu...

Fix your leaking transmission lines with these heavy duty, high flow, flexible transmission lines. This kit is complete with everything needed to...

The Fleece Performance Dual Pump Kit Hardware Kit for the 6.7L Cummins is designed to fit perfectly and comes with everything you need to get the...

  The 63mm FMW Duramax VNT Cheetah Turbocharger is a drop-in replacement turbocharger for 2011-2016 Duramax diesels. It comes with a Fleece Perfo...