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FAST? engineers have developed a kit that makes it easy for anyone to measure an engine?s air/fuel ratio. This plug and play universal O2 sensor processing kit allows your data acquisition system or dyno software to record and display air/fuel ratios. Since it uses...

Round OE Fuel Rail Bracket Kit for Truck w/ Factory Rails and LSXrt ManifoldWarrantyUser 1CatalogCatalog

Square OE Fuel Rail Bracket Kit for Truck w/ Factory Rails and LSXrt ManifoldCatalogUser 1Catalog

The FAST LSX/LSXR/LSXRT Fuel Rails feature a larger internal diameter that dampens the pulses and provides increased fuel volume, ensuring that your injectors never run dry. In addition, they yield better fuel distribution and ultimately greater horsepower. FAST fuel rails deliver performance in addition...

This fuel injector spacer kit for LS3/L99 and L76 engines is designed to allow the use of OE fuel rails with our 146102B, 146103B and 146104B 102mm intake manifolds.WarrantyUser 1CatalogCatalog

FAST Performance HEI Coil For Clockwise Distributor Red/Yellow WireUser 1Catalog

These sensors, by monitoring intake manifold vacuum, measure the amount of load being placed on the engine. The MAP sensors relay engine load output to the ECU, which in turn adjusts fueling for optimum performance and economy.WarrantyUser 1CatalogCatalog

This Idle Air Control Valve Adapter Harness allows the end-user to connect a newer LS series IAC motor to an older harness found on TPI and EZ 1.0/EZ Fuel Muliport harnesses.WarrantyUser 1CatalogCatalog

The throttle position sensor bolts to the throttle blade shaft and relays throttle opening/closing information to the system ECU. The TPS is constructed of high resistance material with a sensitive rotator for accurate throttle position measurement.WarrantyUser 1CatalogCatalog

Whether you want to install a new inline fuel pump, or retro-fit an in-tank pump into a fuel tank that was originally manufactured without a pump, FAST? has an easy solution for you. All FAST? fuel pump kits are designed to work with EZ-EFI?,...

This -8 SAE AN O-Ring fitting is designed to block off an un-used fuel rail end. If your FAST LSX fuel rail installation doesn't require an in-rail fuel pressure gauge, then use this plug to seal off the un-used rail end.User 1Catalog

FAST Precision-Flow Fuel Injectors deliver the outstanding idle quality, unparalleled flow consistency and durability essential for high performance EFI engine applications. Engineered to yield faster throttle response, reduced clogging and superior fuel atomization, Precision-Flow Fuel Injectors are manufactured to the tightest tolerances in the...

Replacement Purge Fitting for LSXr Intake ManifoldUser 1User 2

Allows you to connect you?re A/F Meter to battery powerWarrantyUser 1CatalogCatalog

For switching any high current or high load deviceWarrantyUser 1CatalogCatalog

For switching any high current or high load deviceWarrantyUser 1CatalogCatalog

For switching any high current or high load deviceWarrantyUser 1CatalogCatalog

For switching any high current or high load deviceWarrantyUser 1CatalogCatalog

This IAC is an IAC designed for applications that require relocating the IAC such as 8 stack injection systems. This IAC valve has a filter so there is no concern for debris entering the engine through the remotely mounted IAC ValveWarrantyUser 1CatalogCatalog

This gasket is designed to provide a seal between the LSXR 102mm intake manifold and LS1, LS6 and LS7 cylinder heads.WarrantyUser 1CatalogCatalog