Multi-Port EFI Kits

FAST XFI GM Gen IV LS Fuel Injector Harness 301209 This injector Harness by Fast features labeled wires and weather pack connectors for easy installation in specified applications.        

FAST XFI GM Gen III LS Fuel Injector Harness 301202 This injector Harness by Fast features labeled wires and weather pack connectors for easy installation in specified applications.        

FAST XFI Main Harness Connectors 301000K - Connectors Only, NO WIRES Weather Pack Connectors for FAST XFI System.      

FAST GM LS XFI Main Harness 301108 This XFI Main Harness has labeled wires with weather pack connectors to fit the specified application. Easy plug and play with FAST XFI 2.0 ECU.       

FAST XFI 2.0 Marine ECU 301015 For owners of fuel injected crate/transplant engines, FAST™ presents a solution to allow easy conversion to aftermarket EFI for late model engines. Kits are tailored to perfectly match the specific brand and model of...

FAST XFI 2.0 ECU w/ Data Logging & Traction Control 301008 - 16 Injector Option For owners of fuel injected crate/transplant engines, FAST™ presents a solution to allow easy conversion to aftermarket EFI for late model engines. Kits are...

FAST XFI 2.0 ECU w/ Data Logging & Traction Control 301007 For owners of fuel injected crate/transplant engines, FAST™ presents a solution to allow easy conversion to aftermarket EFI for late model engines. Kits are tailored to perfectly match...

FAST XFI 2.0 ECU w/ Traction Control & 16 Injector Option 301006 For owners of fuel injected crate/transplant engines, FAST™ presents a solution to allow easy conversion to aftermarket EFI for late model engines. Kits are tailored to perfectly...

FAST XFI Street Engine Management System Retro-Fit Kit 304003 All new from FAST, the XFI Street Engine Management System gives you a cost effective system with the flexibility of laptop tuning. This new system uses the same wiring as the FAST EZ-EFI and...

FAST XFI Street Engine Management System With EZ-EFI Throttle Body 304001 All new from FAST, the XFI Street Engine Management System gives you a cost effective system with the flexibility of laptop tuning. This new system uses the same wiring as the FAST...

Fast EZ-EFI Color Display Touchscreen Hand-Held  Upgrade your first generation EZ-EFI Hand-Held to a Color Touchscreen! Serving as the Setup Wizard initially, it then becomes an electronic gauge screen. The hand-held has various advanced features...

Holley Terminator GM LS 4.8,5.3,6.0L 24x MPFI Kit 550-614 Features: For 1997 to 2007 4.8/5.3/6.0 truck engines with 24x crank reluctor/span> Kit includes everything you need to control your stock or mild LS Bosch wideband oxygen sensor included...