FiTech LS1/LS2/LS6 500 HP EFI System With Long Runner Cathedral Intake, Transmission Control, In Tank 440 LPH Pump Module & Go Fuel Regulator Master Kit

The Ultimate LS 500 HP EFI Intake Manifold Kit with 92mm throttle body and transmission control is a complete, self-tuning system for LS engines. Designed for everyone from DIY hot rodders to professional EFI tuners, this kit provides everything needed to complete your LS engine’s induction system and get you on the road quickly. No more mismatched parts or re-flashed ECUs from Craigslist tuners—FiTech’s Ultimate EFI is a full-featured kit.

Whether it's a junkyard 5.3 or a high-performance stroker 427, this kit has you covered! With streamlined components and ease of installation, ditching old factory hardware or updating your LS engine has never been simpler.

Master Kit Includes:

Go Fuel Tight Fit Regulator
Go Fuel In Tank 1000 HP Fuel Pump Module
Electronic Transmission Control for GM automatic transmissions (4L60, 4L65, 4L80, 4L85)

Transmission Control:

This kit includes electronic transmission control, allowing the Ultimate LS ECU to manage shift points, shift firmness, downshifts, and more. Compatible with GM electronically controlled automatic transmissions (4L60, 4L65, 4L80, 4L85), this feature ensures smooth operation for a wide range of setups.

Application:

This intake manifold fits Cathedral Port LS1/LS2/LS6 heads and supports Small Block V8 GEN. III/IV LS-based Chevrolet engines with a 1500-6500 RPM power band, delivering up to 500 HP to the flywheel.

4.8 L / 293 c.i. LR4, LS1, LS2, LS6, V8 Camaro/Corvette
5.3 L / 325 c.i. L33, L59, LM4, LM7, V8 Camaro/Corvette
5.7 L / 346 c.i. LS1, LS6, Cadillac CTS V, Pontiac GTO/Trailblazer SS/Firebird/Trans-Am, SSR, Corvette
6.0 L / 364 c.i. LQ4, LQ9, LS2, V8 Camaro/Corvette

Specifications:

Intake manifold height: 9 inches
92mm high-flow cable-operated throttle body angled at 7 degrees
Throttle body compatible with stock truck accessories; may require new water pump bracket depending on setup

Note: This system is not legal for use on pollution-controlled vehicles and is not CARB approved for emission-controlled vehicles. It is designed for LS-based engines retrofitted into older vehicles without emission controls.