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Why convert your LML's fuel system from a CP4 to a CP3? Since its introduction, the CP4 has proven to be less reliable and less capable than the CP3 used in previous Duramax platforms—resulting in costly repairs for owners when a CP4 fails. You can improve your LML Duramax's reliability and fueling capability, as well as avoid costly failure with Fleece Performance LML CP3 conversion kits. They provide OEM fit-and-finish features, like Fleece's exclusive molded hoses for the fuel feed and return, high flow CP3 fuel fittings, and their valley feed line to support aftermarket lift pump applications. Fleece Performance LML CP3 conversion kits are offered with or without pump and the pump kits come in two different style pumps—a Bosch CP3 injection pump or Bosch CP3 pump with heavy-duty 10mm cam. Choose the kit that is right for you. All kits include: * CP3 to rail high pressure fuel line * High-flow CP3 feed and return fuel fittings * Preformed fuel feed and return fuel hoses * CP3 mounting adapter * Dosing injector distribution block, feed and return lines * FCA extension harness * Low pressure fuel feed line * Hardware kit
Not Yet Reviewed
$749.00
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$2,599.00
$636.65
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$2,209.15
On Sale
Fleece Performance offers Cheetah FMW VNT turbochargers for a variety of diesel trucks to enhance your driving experience. These drop-in replacements come with a Fleece-engineered 63mm FMW compressor wheel and high-flow Cheetah turbine wheel. You'll enjoy the spool-up and throttle response of a small turbo and still get the big top-end power you're looking for. Rated at up to 650 rear wheel horsepower (depending on model), this is the ultimate combination for dual-purpose applications. If you're towing during the week and sled pulling on the weekend, the 63mm FMW VNT Cheetah is just the ticket. Order the turbo model recommended for your vehicle. Additional details: * Stock appearing: Uses the stock housings with updated internals. This allows you to keep all factory systems intact, yet enables you to safely run 40 psi of boost. No aftermarket components or modifications needed for installation. * Proven Technology: Built with genuine Garrett Turbocharger parts. They feature upgraded shaft bearings and 360 degree thrust bearings. * Powerful Yet Responsive: Turbochargers spool like stock, thanks to the variable nozzle technology (VNT) which allows the turbo to act smaller upon spool-up and then open up to flow more exhaust on the top end. * Exclusive FMW wheel technology: – Forged milled wheels – Faster spool-up – Increased throttle response – Broader torque curve
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$2,599.00
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$2,649.00
$2,209.15
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$2,251.65
On Sale
PowerFlo is the latest OEM replacement performance in-tank lift pump from the diesel experts at Fleece. It's the only in-tank lift pump capable of supporting up to 800 hp, including dual CP3 pump configurations! The PowerFlo assemblies retain the factory water-in-fuel sensor, factory fuel heater, and factory fuel lines—and installation takes half the time of other high-flow pumps. Two is always better than one, and the PowerFlo delivers with two OEM-quality gerotor pumps, increasing flow capacity and reliability over the factory pump. The active fill bucket eliminates the need for tank sumps, draw straws, additional air filtration, and the 1/4 tank issues typically encountered when seeking a higher flow lift pump to meet your engine's need. Order the Fleece Performance PowerFlo in-tank lift pump assembly recommended for your vehicle.
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$649.00
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$799.00
$551.65
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$679.15
On Sale
Fix your leaking transmission lines with Fleece Performance transmission cooler lines. They are heavy-duty, high flow, flexible transmission lines. Direct replacements for OEM lines, the kits come complete with everything needed to get the job done right the first time. Kits include transmission lines, fittings, and zip ties. If you have an OEM replacement or aftermarket radiator, Setrab fittings may be required (sold separately).
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$75.99
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$329.99
$64.59
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$280.49
Fleece Performance introduces the Freedom Series cylinder heads for 6.6L Duramax engines, found in many Chevy and GMC trucks from 2001 and up. Each cylinder head is manufactured in-house at the 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 new valve guides, springs, and valve seals. Perfect for the daily driver or towing application, these heads utilize stock valves with a 45 degree angle on the intake and exhaust ports. Available with new or remanufactured casting.
Not Yet Reviewed
$1,099.00
On Sale
Fleece Performance offers wiring pigtails and replacement connectors for a wide range of vehicles—including many Dodge, Chevrolet, GMC, Ford, and Ram models from the 1990s and up. These replacement parts are ideal for sensors, starter solenoids, cooling fans, and other components under the hood. Fully automated in-house wire cutting and terminal crimping ensure you get the highest quality connectors and pigtails to get your car or truck back on the road quickly. Order the model that corresponds to your electrical application.
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$12.99
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$299.99
$11.04
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$254.99
On Sale
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 fuel tank to accommodate a sump. Each of these has some significant drawbacks including the 1/4 tank issues that result in cavitation of the pump when you draw air into the fuel system. To resolve this issue there are Fleece Performance SureFlo performance sending units. SureFlo units are designed to work with aftermarket lift pumps and fit directly into your stock sending unit location. Each one features factory-style quick disconnects to adapt your stock fuel lines at the tank, giving you the cleanest installation available, and requiring no cutting or drilling of the tank. SureFlo works by drawing fuel from, and returning fuel to, the bucket assembly at the base of the unit, ensuring you are always drawing fuel into your pump and not drawing air into the fuel system, as well as eliminating the dreaded 1/4 tank problems. The SureFlo bucket also incorporates one-way check valves to allow fuel to easily flow in at lower levels. Fleece Performance SureFlo performance sending units are a great alternative for trucks originally equipped without an in-tank pump needing to repair a malfunctioning level sender or if you are simply looking to run your own custom fuel lines directly to the tank. Choose the SureFlo unit designed for your Cummins or Duramax fuel system. Features: * New fuel level electronics and fuel float * Heavy-duty billet aluminum cap * Universal -8 AN ports for professionally plumbing a custom fuel setup * New O-ring or flange seal * Adaptation pigtail connector (where applicable)
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$359.00
$305.15
On Sale
Fleece Performance L5P fuel filter upgrade kits allow you to seamlessly change over from the stock cartridge-style filter to a spin-on canister-style filter. The canister filter provides increased filter capacity and longer change intervals, as well as expands your filter options. Fleece's anodized billet aluminum fuel filter base has been designed to retain the proper fuel flow path across the PTC heating element, ensuring maximum effectiveness in cold weather. The new filter base is installed in the same location as the stock cartridge filter base and includes quick-disconnect fittings for an OE-quality fit and finish. Choose the patented kit designed for your truck. Kit includes: * Donaldson 4 micron fuel filter and water separator * Filter base with integral mounting * Distribution filter block/filter coupler * Quick disconnect fittings * 1/8 in. NPT port for fuel pressure monitoring
Not Yet Reviewed
$229.00
$194.65
On Sale
Fleece Performance rear engine cover coolant return plugs add a finishing touch under the hood of your truck, such as when you're installing an aftermarket turbo. Machined from 6061 aluminum, the plugs feature an anodized black finish and are laser-etched with the Fleece "F." A high-temperature silicone O-ring is included to prevent leaks. Order the plug recommended for fitment on your vehicle.
Not Yet Reviewed
$19.99
$16.99
On Sale
Fleece Performance water neck block-off plates are thicker than the stock plate and feature an integrated square cut O-ring with no gasket required. In contrast, the OE covers are prone to leakage over time. Fleece block-off plates are an upgrade for the rear engine cover on your Duramax V8 and will stop the coolant leaks for good!
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$55.00
$46.75
On Sale
Fleece Performance fuel injection wiring harnesses are offered for many different applications. Produced in-house, Fleece's manufacturing process includes fully automated wire cutting and terminal crimping to ensure you get the highest quality replacements to get your truck or car back on the road quickly. Choose the wiring harness designed for your application.
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$29.99
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$69.99
$25.49
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$59.49
On Sale
Fleece Performance turbo oil feed lines ensure that your system gets an adequate oil supply. They offer replacements for your OE setup, as well as remote kits that prevent premature bearing failures. All include extra-flexible, smooth bore PTFE hose and high-quality fittings. The remote kits will also include a stock oil feed plug and an oil galley rifle fitting. Whether you're replacing or upgrading, Fleece Performance turbo oil feed lines are available for your application.
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$99.99
$84.99
On Sale
If you're running an aftermarket positive displacement lift pump on your Duramax, a Fleece Performance fuel primer bulb sealing kit will allow you to eliminate the leak-prone primer bulb from your fuel system. The sealing cap includes a 1/8 in. NPT port to feed a low-pressure fuel gauge or cap it off with the included NPT plug. Note: Fleece kits include two screw options (standard 8-32 and metric M4). Thread in by hand each screw type and use the thread pitch with the best fitment. There is variation amongst the model years, so always test first by hand to verify the thread pitch on your vehicle.
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$49.99
$42.49
On Sale
Wish you could keep your headlights, high beams, and fog lights all on at the same time on your 2003-07 full size GM truck? Fleece Performance All-Lights-On modules will allow you to do just that. These modules allow a simple upgrade that you can perform inside of your fuse box. Simply install one of these GM All-Lights-On modules to allow your high-beams, low-beams, and fog lamps to simultaneously illuminate the road ahead. Once the modules are installed, they will turn on high-beams, low beams, and fog lamps when your high-beams are turned on. When the high-beams are turned off, the low-beams and the fog lights will function normally. Add the supplied spade terminal to provide a signal ground when the high-beams are turned on to allow you to control an accessory relay with the high-beam switch. Brighten your driving experience with Fleece Performance All-Lights-On!
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$24.95
$21.21
On Sale
Fleece Performance offers fan extension harnesses for a wide range of vehicles, including late model Chevrolet and GMC trucks. These factory-style replacements allow you to repair a broken or damaged harness without replacing the entire fan and clutch assembly. The harnesses are mounted to the fam assembly and connect to the fan and chassis harness. Fully automated in-house cutting and terminal crimping ensure you get the highest quality parts needed to get your truck back on the road quickly. Order the harness recommended for your fan clutch model.
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$45.99
$39.09
On Sale
Fleece Performance All-Lights-On modules will allow your high beams, low beams, and fog lamps to all be on simultaneously to illuminate the roadway when your high beams are activated. In addition, when your high beams are not on, your low beams and fog lamps will still operate normally. Stay safer, see further, and brighten your nighttime driving experience with a simple installation upgrade of these Fleece Performance All-Lights-On modules.
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$21.95
$18.66
On Sale
Fleece Performance CP3K fuel pump kits are a valuable lesson in supply and demand. Simply put; your diesel engine's demand for more fuel cannot be supplied by your stock CP3 pump, thus its' time for a new supplier--CP3K. These modified pumps are engineered to eliminate the factory fuel flow restriction that usually begins at 3,000 rpm. Your stock pump at this point starts losing fuel flow and rail pressure, which equates to loss of horsepower when you need it most. Reverse the trend; maintain the desired fuel rail pressure through your entire rpm range with cost-effective Fleece CP3K fuel pumps.
Not Yet Reviewed
$1,299.00
$1,104.15
On Sale
Here's the problem: On the L5P Duramax, because of the direct placement of the MAP sensor into the intake air stream from the factory, soot buildup becomes an ongoing maintenance problem. This requires the sensor to be routinely cleaned or replaced. The solution is Fleece Performance MAP sensor spacer kits. Fleece's spacer moves the sensor from the direct intake air stream to reduce soot buildup over time and eliminates the need to routinely clean or replace the sensor. The spacer block also integrates a 1/8 in. NPT port to allow for installation of an auxiliary boost pressure sensor. Fleece Performance kits include mounting block, fastener, seal ring, and O-ring port plug.
Not Yet Reviewed
$68.99
$58.64
On Sale
Don't ruin excellent engine modifications by putting a new bend in old fuel lines. Fleece Performance high-pressure fuel lines are OEM-quality, look great, and come with M14 x 1.5 fittings. Use them for straight lines, and get one of our quality benders (not included) for perfect angles and a professional appearance. Fleece 8mm high-pressure fuel lines are available in lengths ranging from 7 in. to 24 in.
Not Yet Reviewed
$68.99
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$569.00
$58.64
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$483.65
On Sale
Fleece Performance universal coolant level float switches feature stainless steel bodies with 1 in. NPT thread, 8 in. harness, and 2-pin metripack connector. They have a 3/4 in. float travel and are for use with the Fleece's coolant tank or custom configuration tanks with 1 in. NPT bung.
Not Yet Reviewed
$39.99
$33.99
On Sale
Fleece Performance TapShifters allow you to shift your transmission with the touch of a button. Perfect for towing, drag racing, daily driving, and everything in-between, these kits install in no time and provide factory-like operation, functionality, and styling. Fleece Performance TapShifters are available for a multitude of year/make/model vehicles, and install using OEM high-quality connectors for a complete plug-and-play installation.
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$399.00
$339.15
On Sale
Fleece Performance fuel heaters ensure optimal fuel flow and combustion in engines, especially in cold climates. They are for use in Fleece's heated fuel filter kits, including PowerFlo lift pumps with a heater provision on the filter base. Fuel heater specifications: * At typical fuel flow rates a temperature increase between 4 to 8 degrees F will occur across the heating element * Temperature switching points: -- ON: 28.4 degrees +/- 5.4 degrees F -- OFF: 48.2 degrees +/- 5.4 degrees F
Not Yet Reviewed
$139.00
$118.15
On Sale
Some L5P 6.6L Duramax vehicles have a secondary MAP sensor. The problem: Its direct placement into the intake air stream from the factory causes the soot buildup to become an ongoing maintenance problem, requiring routine cleaning or replacement of the sensor. The solution: Fleece Performance secondary MAP sensor spacers. They move the sensor from the direct intake air stream to reduce soot buildup over time and eliminate the need to routinely clean or replace the sensor. Each kit includes mounting block (spacer), fastener, and O-ring.
Not Yet Reviewed
$68.99
$58.64
On Sale
Fleece Performance TufShafts axle shafts are direct replacement upgrade shafts for any 2001-10 GM 2500-3500 with a 9.25 in. AAM front axle. They're designed to eliminate the stock passenger side split axle shaft that is prone to breaking under high torque situations, as well as the short drive side axle shaft that is prone to breaking under high torque situations. The TufShafts are made from high-strength HyTuf material for maximum strength and reliability. These heavy-duty load-bearing components transmit power from the transmission to the wheels. They are the link between the differential and the wheels, enabling your vehicle to move forward or backward. NOTE: TufShaft does not incorporate an axle disconnect, so the front driveshaft will spin when the vehicle is in motion; but with the front differential unlocked, the truck will turn and drive like normal.
Not Yet Reviewed
$945.00
$803.25
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