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FAST EFI Fuel Systems & More
FAST (Fuel Air Spark Technology) is a leading developer of advanced EFI systems. With close relationships with its customers, FAST has been able to develop...
FAST (Fuel Air Spark Technology) is a leading developer of advanced EFI systems. With close relationships with its customers, FAST has been able to develop new technologies by simply listening to the needs of performance enthusiasts like you. In 2001, FAST became a member of the COMP Performance Group, allowing the company to conduct even more extensive R&D with a larger team of engineers. Today, FAST continues to develop cutting-edge fuel injection products, including a complete line of superior EFI systems, intake manifolds, throttle bodies, and other parts. Want the best in fuel injection systems...
FAST (Fuel Air Spark Technology) is a leading developer of advanced EFI systems. With close relationships with its customers, FAST has been able to develop new technologies by simply listening to the needs of performance enthusiasts like you. In 2001, FAST became a member of the COMP Performance Group, allowing the company to conduct even more extensive R&D with a larger team of engineers. Today, FAST continues to develop cutting-edge fuel injection products, including a complete line of superior EFI systems, intake manifolds, throttle bodies, and other parts. Want the best in fuel injection systems and components? Go FAST!
Air/Fuel Meter, Dual Bank, Wireless, 0-5V, Each
Part Number: FST-170302
Estimated Ship Date: Today
Estimated Ship Date: Today
Air/Fuel Meter, Single Bank, Wireless, 0-5V, Each
Part Number: FST-170301
Estimated Ship Date: Apr 23, 2026 if ordered today
Estimated Ship Date: Apr 23, 2026 if ordered today
Oxygen Sensor Wideband Control Kit, for use on SuperFlow Dynos, AMP-Style Connector, SuperFlow 902, AutoDyn, CycleDyn, Kit
Part Number: FST-170636
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
Wideband Auxiliary Air/Fuel Ratio Module, FAST XFI, 0-5V, Each
Part Number: FST-170577
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered 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
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
O2 Sensor, LSU 4.9 Wideband, 5-Wire, 6 Pin Plug, Each
Part Number: FST-170413
Not Yet Reviewed
Estimated Ship Date: Apr 24, 2026 if ordered today
Estimated Ship Date: Apr 24, 2026 if ordered today
HARNESS, DUAL&LSU4 SEN. AIR/FUEL UPGRADE
Part Number: FST-170445
Not Yet Reviewed
Estimated Ship Date: Apr 6, 2026 if ordered today
Estimated Ship Date: Apr 6, 2026 if ordered 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
Fuel Injection System, XFI Sportsman EFI, Throttle Body, ECU, Wiring Harness, Wide-band O2 Sensor, Kit
Part Number: FST-303001
Estimated Ship Date: Mar 3, 2026 if ordered today
Estimated Ship Date: Mar 3, 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
Harness, Replacement Cable, Wideband Dyno, Power Lead, 22 ft. Length, Each
Part Number: FST-170460
Not Yet Reviewed
Harness, Replacement Cable, Wideband Dyno, Power Lead, 6 ft. Length, Each
Part Number: FST-170462
Not Yet Reviewed
Estimated Ship Date: Mar 30, 2026 if ordered today
Estimated Ship Date: Mar 30, 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
Fuel Injection System, EZ-EFI 2.0 Self-Tuning, Black Anodized Throttle Body, 4-barrel Square Bore Flange, Kit
Part Number: FST-30400-KIT
Estimated Ship Date: Today
Estimated Ship Date: Today
Fuel Injection System, EZ-EFI 2.0 Self-Tuning, Black Anodized Throttle Body, 4-barrel Square Bore Flange, Kit
Part Number: FST-30403-KIT
Not Yet Reviewed
Estimated Ship Date: Apr 28, 2026 if ordered today
Estimated Ship Date: Apr 28, 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 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered 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
Throttle Body Fuel Injection, EZ-EFI Self Tuning, Speed Density, 4-Barrel, Square Bore, Includes Fuel Pump, Kit
Part Number: FST-30227-06KIT
Need It Sooner? We recommend these similar substitute parts:
Holley Sniper 2 EFI 650 HP Inline Pump Fuel Injection Systems with Power Distribution Module 550-511-BPK
Not Yet Reviewed
Estimated Ship Date: Today
Engine Control Unit, Marine, XFI 2.0, O-Ring Sealed, Kit
Part Number: FST-301015
Not Yet Reviewed
Estimated Ship Date: Apr 29, 2026 if ordered today
Estimated Ship Date: Apr 29, 2026 if ordered today
