Availability
Air/Fuel Meter, Dual Bank, Wireless, 0-5V, Each
Part Number: FST-170302
Estimated Ship Date: Today
Estimated Ship Date: Today
O2 Sensor, LSU4 Wideband, 5-Wire, Male 6-Pin Plug, 18mm, Each
Part Number: FST-170408
Estimated Ship Date: Today
Estimated Ship Date: Today
Oxygen Sensor, 5-wire, Wideband, LHA-Type, Thread-in, Wiring Harness, Designed for F.A.S.T. XFI Systems, Each
Part Number: FST-301422
Estimated Ship Date: Today
Estimated Ship Date: Today
Gauge Wiring Harness, Air/Fuel Meters, 12 ft., with Power Lead, Each
Part Number: FST-170480
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Control System, XFI Sportsman EFI, ECU, Wiring Harness, Wide-band O2 Sensor, Kit
Part Number: FST-303000
Estimated Ship Date: Today
Estimated Ship Date: Today
Weatherproof Wiring Connector, Connector kit for XFI 5 Wire Wide-Band Oxygen Sensor, Female Plug Includes 7 Pins and Seals, Kit
Part Number: FST-301422K
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Harness, Replacement Cable, Wideband Dyno, 22 ft. Length, Each
Part Number: FST-170461
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Today
Engine Control Unit, FAST XFI 2.0, Kit
Part Number: FST-301000
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Engine Management System, XFI Sportsman, ECU, Ignition Controller, 02 Sensor, Wiring Harness, Software, USB Cable, Chevrolet, LS, Kit
Part Number: FST-303004
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Engine Control Unit, Marine, XFI 2.0, O-Ring Sealed, Kit
Part Number: FST-301015
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Engine Management System, EZ-EFI Self-Tuning, EZ-EFI 4 Injector Throttle Body, ECU, Wiring Harness, Kit
Part Number: FST-304001
Not Yet Reviewed
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
EZ-EFI 2.0 Self Tuning Engine Control System - Multi-Port Retro-Fit Type, Kit
Part Number: FST-30404-KIT
Estimated Ship Date: Today
Estimated Ship Date: Today
EZ-EFI 2.0 Self Tuning Engine Control System, GM, LS, Engine Swap, Kit
Part Number: FST-30405-KIT
Estimated Ship Date: Apr 27, 2026 if ordered today
Estimated Ship Date: Apr 27, 2026 if ordered today
Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster