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FiTech Ultimate LS EFI 500 HP Fuel Injection Systems
42 Customer Reviews
Sequential spark and fuel control mates 36 lbs./hr. injectors, a plug-and-play wiring harness, and a color touchscreen self-learning ECU. This allows for programing two fan control outputs, most tach and speedometer output drive
Sequential spark and fuel control mates 36 lbs./hr. injectors, a plug-and-play wiring harness, and a color touchscreen self-learning ECU. This allows for programing two fan control outputs, most tach and speedometer output drivers, and target AFR and timing on the fly. A suction cup mounting bracket puts the controllers at your fingertips and allows for impressive visual aids.
The optional transmission control feature is suitable for 4L60, 4L65, 4L70, or 4L80 GM transmissions. FiTech LS EFI 500HP fuel injection systems with transmission controller provide impressive power and performance, while allowing you to save a little green for your next tires.
Additional features:
* Black anodized aluminum parts for style and corrosion resistance
* High-flow, cable-operated throttle body
* Bosch wideband-controlled
* Stainless oxygen sensor bung
* Compatible with car and truck coils
* AN fittings and fuel crossover
* Works with custom cams
* Designed for applications making at least 6 in. of vacuum at idle
* 24X and 58X crank and cam compatible
* Programmable touchscreen hand-held controller with data log features
Showing In Stock Items. Show All 42 Items.
Fuel Injection System, Ultimate LS EFI, 500 HP, LS1/LS2/LS6, Without Transmission Controller, Kit
Part Number: FIF-70001
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System, Ultimate LS EFI, 500 HP, LS1/LS2/LS6, With Transmission Controller, With Inline Fuel Pump, Kit
Part Number: FIF-71002
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System, Ultimate LS EFI, 500 HP, LS3/L92, With Transmission Controller, With Inline Fuel Pump, Kit
Part Number: FIF-71012
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 500 HP, LS3/L92, With Transmission Controller, Kit
Part Number: FIF-70012
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Fuel Injection System, Ultimate LS EFI, 500 HP, LS1/LS2/LS6, Without Transmission Controller, With Inline Fuel Pump, Kit
Part Number: FIF-71001
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection, Ultimate LS, Ultimate LS Kit LS3/L92 - 500HP w/ Trans Control, w/ coil pack set
Part Number: FIF-78012
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Fuel Injection, Ultimate LS, Ultimate LS Master Kit w/70012 Kit Plus Inline Fuel Pump Kit, w/ coil pack set
Part Number: FIF-78112
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Fuel Injection, Ultimate LS, Ultimate LS Kit LS3/L92 - 500HP w/ Trans Control, w/ led coil pack set
Part Number: FIF-79012
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
Fuel Injection System, Ultimate LS, 500 HP, Multi-port, Rectangular Port Heads, Force Fuel, In-Line Fuel Pump, LED Coil Packs, Trans Controller, Kit
Part Number: FIF-79112
Not Yet Reviewed
Estimated Ship Date: Mar 27, 2026 if ordered today
Estimated Ship Date: Mar 27, 2026 if ordered today
