Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Introducing our Freedom Series cylinder heads for the 6.6L Duramax! Each cylinder head is manufactured in our state-of-the-art Freedom Racing Engine shop and is guaranteed to meet or exceed factory specifications. All heads are meticulously inspected, pressure and leak tested, and are equipped with...

Dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes o-ring and cam-lock and is a direct replacement for your OEM cover. 2001-2016 Duramax Oil Cap Black Vehicle Fitments Chevrolet Silverado 3500 2001 to 2006 Chevrolet Silverado 2500...

Dress up your engine bay with our billet aluminum oil cap for the Chevy Duramax! Includes o-ring and cam-lock and is a direct replacement for your OEM cover. 2001-2016 Duramax Oil Cap Blue Vehicle Fitments Chevrolet Silverado 3500 2001 to 2006 Chevrolet Silverado 2500...

Only from Fleece, a complete fuel supply upgrade kit for your 1998.5-2002 Dodge Cummins. The kit includes everything you need to properly route, plumb, pump, and filter fuel for your VP engine. Includes a new sending unit and float to get your fuel gauge...

Only from Fleece, a complete fuel supply upgrade kit for your 2003-2004 Dodge Cummins. The kit includes everything you need to properly route, plumb, pump, and filter fuel for your Cummins engine. Includes a new sending unit and float to get your fuel gauge...

Increase fuel flow on your 6.7L Cummins with our 1/2 inch high flow big line kit. This kit eliminates the restrictive factory line from the fuel filter housing to the injection pump with our larger hose and fittings. Kit Includes: 1/2 inch push lock...

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 job done right the first time with a simple and clean install. Our dual pump kit mounts the...

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 job done right the first time with a simple and clean install. Our dual pump kit mounts the...

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 job done right the first time with a simple and clean install. Our dual pump kit mounts the...

The PowerFlo Lift Pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! Direct OEM In-Tank Replacement: The PowerFlo Lift Pump retains the...

The PowerFlo Lift Pump is the latest OEM replacement performance lift pump from the diesel experts at Fleece Performance. The PowerFlo is the only in-tank lift pump capable of supporting up to 800 hp! Direct OEM In-Tank Replacement: The PowerFlo Lift Pump retains the...

Stay safer, see further, and brighten your night time driving experience with our All Lights On device. The All Lights On allows your high-beams, low-beams, and fog lamps to all be on simultaneously to illuminate the roadway when your high beams are activated. When...

Upgraded 7/16 inch diameter pushrods for GM's Duramax 6.6L diesel engines. Produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. These pushrods are designed to stand up to higher valve spring pressure, RPM, and cylinder pressure...

Fleece Performance billet rocker arm bridges for the GM Duramax. These bridges offer a massive 2.5-time strength improvement over factory bridges. Machined from billet 8620 steel, the bridges are surface ground for flatness, feature improved oiling to the valve stems, and case hardened and...

Dress up your Allison Transmission with our Billet PTO Cover Kit. Complete kit includes covers, gaskets, and button head bolts to give your transmission a clean look. Fleece Performance Billet PTO Covers Vehicle Fitments Chevrolet Silverado 2500 HD 2001 to 2016 Chevrolet Silverado 3500...

Complete kit to service your Fleece Performance Coolant Bypass - Includes all O-rings, fasteners, and a new thermostat. Features: Two thermostats included to service all production years, you will only use one (1) of the included thermostats when replacing your bypass thermostat. This kit...