Products

Constructed from the same advanced polymer material as the original FAST LSX 92mm Intake Manifold, but now in the popular black color, the LSXR off...

Constructed from the same advanced polymer material as the original FAST LSX 92mm Intake Manifold, but now in the popular black color, the LSXR off...

The FAST LSX 102mm Intake Manifold for GM 4.8, 5.3 and 6.0 truck engines provides bolt-on performance gains without any loss in bottom-end drivabil...

This lower shell replaces the lower shell that came with the LSX 92mm intake manifold.CatalogUser 1This Part Fits: Year Make Model Submodel 2001...

This upper shell replaces the upper shell that came with the LSX 92mm intake manifold.CatalogUser 1This Part Fits: Year Make Model Submodel 2001...

Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was d...

Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was d...

Another product from Fleece Performance built out of necessity is the 2003-2013 Cummins Coolant Bypass kit. The Cummins engine cooling system was d...

Amplify your driving experience with a Fleece Performance Holset Cheetah Turbocharger. Featuring a Fleece Performance exclusive 63mm FMW COMP compr...

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

No inflated numbers;Proven to support 750 RWHP with the proper complimenting modifications;Eliminates factory fuel flow restiction that begins at 3...

Another product from Fleece Performance built out of necessity is the 1998.5-2002 Cummins Coolant Bypass kit. The Cummins engine cooling system was...

Performance Calibration Kit; Incl. Pro Cal 3 Calibration Interface/Ford Performance PN[M-9601-M] High Flow Performance Air Filter/Calibration Vouch...

Performance Calibration Kit; 35 HP Peak Gain At 2900 RPM; 76 lbs./ft. Torque At 2600 RPM; Incl. Pro Cal 4 Calibration Delivery Tool/High Flow Perfo...

ProCal Tool w/Performance Calibration; 45 HP At 4500 RPM; 60 lb./ft. At 2500 RPM Torque Gain;This Part Fits: Year Make Model Submodel 2019-2023 ...

Performance Calibration Kit; Peak Torque 467 lbs./ft. At 3500 RPM; Peak Power 430 HP At 6000 RPM;This Part Fits: Year Make Model Submodel 2021-2...

Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs,...

Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs,...

Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs,...

Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs,...

Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs,...

Make a big increase in power and sound with Ford Racing's ProCal Calibration Tool, Cold Spark Plug Set and Cold Air Intake. With just colder plugs,...

Performance Calibration Kit; Incl. Ford Performance Cold Air Intake/87mm Throttle Body/Throttle Body Adapter/Pro Cal 4 Calibration Delivery Tool;Th...

Engine Control Pack; Includes PCM w/ Ford Performance Calibration/MAF Sensor/Mustang Bullit Airbox; Requires Return Type Fuel System;This Part Fits...