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: FIT70083 Categories: , , Brand:

Description

Part Number: 70083

FiTech Dual Quad Retro Cast LS Port Gold EFI System

Classic dual-quad muscle car aesthetic combined with high-performance multi-port electronic fuel injection for cathedral port GM LS engines.

Key Features

  • ☑ Classic Retro Dual-Quad Styling featuring gold-finished throttle bodies and cast aluminum intake manifold
  • ☑ Compatible with cathedral port GM LS heads (LS1, LS2, LS6, and similar configurations)
  • ☑ High-flow multi-port fuel injection rated to support up to 750 HP (naturally aspirated or forced induction)
  • ☑ Includes 55 lb/hr injectors, high-volume fuel rails, wideband O2 sensor, and 3-bar MAP sensor
  • ☑ Advanced self-tuning external ECU with built-in boost and nitrous control capabilities

Technical Specifications

Brand FiTech Fuel Injection
Manufacturer Part Number 70083
Engine Compatibility GM LS Series (LS1 / LS2 / LS6 Cathedral Port Heads)
System Type Multi-Port EFI with Dual Quad Throttle Bodies
Finish Gold Throttle Bodies / Retro Cast Aluminum Manifold
Horsepower Rating Up to 750 HP
Injector Size 55 lb/hr
MAP Sensor 3-Bar (Boost / Forced Induction Ready)
ECU Included Yes (External Standalone Self-Tuning ECM)

What’s Included in the Box

  • Retro Cast Aluminum Cathedral Port Intake Manifold
  • Dual Gold-Finished Throttle Bodies
  • Set of (8) 55 lb/hr Fuel Injectors & High-Volume Fuel Rails
  • External Engine Control Unit (ECU) & Wiring Harness
  • Handheld Touchscreen Setup Controller
  • Wideband Oxygen Sensor & Weld-In Stainless Bung
  • 3-Bar MAP Sensor, Coolant Temp Sensor, and Intake Air Temp Sensor
  • Mounting Gaskets, Hardware, and Vacuum Fittings

At JP Racing, we supply top-tier FiTech fuel injection systems engineered to maximize horsepower, throttle response, and driveability. FiTech’s industry-leading manufacturing quality ensures exceptional reliability for both street machines and track builds. Order your FiTech 70083 system today from JP Racing for rapid UK dispatch, full technical advice, and dedicated customer support.

Additional information

Weight 55.13 kg
Dimensions 71.12 × 40.64 × 25.4 cm

Frequently Asked Questions

The FiTech 70083 EFI system is specifically engineered for GM LS engines equipped with cathedral port cylinder heads, including LS1, LS2, and LS6 head castings.

Equipped with 55 lb/hr fuel injectors and high-volume fuel rails, the FiTech 70083 system supports up to 750 HP. The included 3-bar MAP sensor and ECU also support boosted and nitrous applications.

No separate software is required. The system includes an external self-learning ECU, complete wiring harness, wideband O2 sensor, and a color touchscreen handheld controller to guide setup.

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