Fleece Performance

TufShafts are a direct replacement upgrade shafts for any 2001-2010 GM 2500-3500 with a 9.25" AAM front axle. They are designed to eliminate the stock passenger side split axle shaft that is prone to...

Fleece Performance Tie Rod Sleeves are a must for any 99+ GM 2500-3500HD pickup that utilizes four-wheel drive. These support sleeves keep the weak factory tie rods from bending under the added...

This black 1.5in T4 Pedestal Spacer is designed for use with T4 Turbos installed on Duramax engines when an extra inch of elevation out of the valley is required, although it could be used in any T4...

Control your torque converter from the palm of your hand with the AlliLocker(tm) from Fleece Performance Engineering. The AlliLocker(tm) is 100% code free and allows you to bypass the TCM to...

The Fleece Performance CP3K is a modified Duramax LBZ CP3 designed to eliminate the factory fuel flow restriction that begins at 3,000 RPM. If you have a stock CP3 pump you are losing fuel flow and...

The Fleece Performance Duramax 10mm stroker CP3 is a straight forward, no inflated numbers, CP3 upgrade proven to support 750 RWHP with the proper complimenting modifications. Not only will it...

The Fleece Performance Duramax Turbo Thermostat Delete Plug is designed to eliminate the stock coolant feed line when installing a non-water cooled turbocharger on your Duramax. It provides clearance...

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. Dress up your engine bay with our billet...

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. Dress up your engine bay with our billet...

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. Dress up your engine bay with our billet...

Replacement connector with 6" pigtail for use on the Duramax engine and many other vehicle applications. Produced in-house, our manufacturing process includes fully automated wire cutting and...

If you're running an aftermarket positive displacement lift pump like our PowerFlo on your Duramax our fuel primer bulb sealing kit will allow you to eliminate the leak prone primer bulb from your...