FITECH Suitable for up to 750 HP/ External ECU/ Boost and Nitrous Capable/ Cathedral Intake/ Fits LS1, LS2, LS6, LR4, LM4, LM7, LQ4, LQ9 Heads/ Dual O2 Sensors/ Cable Driven 102mm Throttle Body/ 55lb Injectors (8)/ 3-Bar MAP Sensor/ Fan Control/ AC Input/ E85 Compatible/ Pro-tuning laptop software/ Classic Gold Finish

£3,250.88 Inc. VAT

SKU: FIT70085 Categories: , , Brand:

Description

Part Number: 70085

FiTech Retro LS Dual-Quad EFI System (Black)

Classic dual-quad intake aesthetic combined with modern sequential multi-port electronic fuel injection for GM LS series engines.

Key Features

  • ☑ Twin 4-barrel cast aluminum throttle bodies in a sleek black powder coat finish
  • ☑ High-flow multi-port fuel injection configuration equipped with 55 lb/hr injectors
  • ☑ Self-tuning ECU with handheld touchscreen controller for effortless setup
  • ☑ Integrated ignition timing control capabilities and dual Bosch wideband O2 sensor support
  • ☑ Complete plug-and-play wiring harness and high-flow anodized aluminum fuel rails

Technical Specifications


Brand FiTech Fuel Injection
Manufacturer Part Number 70085
Engine Fitment GM LS Series (Cathedral Port Heads)
Injection Style Sequential Multi-Port / Dual Quad Throttle Body
Intake & Throttle Body Finish Black Powder Coat
Fuel Injector Rating 55 lbs/hr (8 Included)
Horsepower Capacity Up to 750 HP
Tuning Control Self-Tuning with Color Touchscreen Controller
Timing Control Compatible Yes

What’s Included in the Box

  • FiTech Cast Aluminum Dual-Quad Intake Manifold (Black)
  • Twin Cast Aluminum 4-Barrel Throttle Bodies
  • Self-Tuning ECU & Color Touchscreen Handheld Tuning Unit
  • 8 x 55 lb/hr High-Impedance Fuel Injectors
  • Black Anodized High-Flow Fuel Rails
  • Dual Wideband Oxygen Sensors with Weld-In Bungs
  • Complete Engine Wiring Harness & Sensor Package (MAP, TPS, IAC, IAT)
  • Gaskets & Mounting Hardware

Engineered to deliver unmatched muscle car visual appeal alongside flawless cold starts, sharp throttle response, and robust horsepower support, the FiTech 70085 retro kit represents the ultimate LS EFI upgrade. As an official UK distributor, JP Racing supplies verified FiTech performance components backed by expert technical advice and fast UK nationwide delivery.

Additional information

Weight 55.13 kg
Dimensions 71.12 × 40.64 × 25.4 cm

Frequently Asked Questions

The FiTech 70085 Retro Dual-Quad LS EFI System is designed specifically for GM LS-series engines equipped with cathedral port cylinder heads, including LS1, LS2, LS6, and standard 4.8L, 5.3L, and 6.0L truck engine blocks.

Out of the box, the FiTech 70085 kit includes eight 55 lb/hr fuel injectors and high-flow fuel rails capable of comfortably supporting up to 750 horsepower on naturally aspirated LS engine builds.

No advanced laptop or dyno tuning is required for standard operation. The system features FiTech's self-learning ECU algorithm that automatically learns and adjusts fuel delivery in real-time using the included color touchscreen controller.

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