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...

FAST Air/Fuel Ratio Meter 170401 A must have for your tuning tool box! Accurately measure you air to fuel ratio to prevent premature engine failure. Features: Built-in Data Logging with On-Screen Play Back Full Graphic, Easy to Use Display Single Sensor

FAST Air/Fuel Ratio Meter 170402 A must have for your tuning tool box! Accurately measure your air to fuel ratio to prevent premature engine failure. Features: Built-in Data Logging with On-Screen Play Back Full Graphic, Easy to Use Display Dual Sensors...