FAST 302003-TCU EZ-EFI Complete Fuel System Kit with LSXRT Manifold and TCU for LS Engines

The FAST 302003-TCU EZ-EFI Engine and Manifold Kit delivers a complete electronic fuel injection solution for LS engine swaps and builds. This comprehensive system combines proven EZ-EFI self-tuning technology with premium induction components and transmission control in a single package.

Complete Kit Includes:

• EZ-EFI 2.0 Fuel ECU with self-tuning capability and multiport harness
• LSXRT intake manifold designed for LS1, LS2, LS3, and LS6 engines
• Big Mouth throttle body for maximum airflow
• Billet aluminum fuel rails with integrated mounting
• Precision Flow fuel injectors matched to system requirements
• XIM ignition control module for seamless spark management
• TCU transmission control unit for automatic transmission integration

Key Features:

• Self-learning ECU requires no laptop tuning—learns your engine in real time
• Integrated transmission control eliminates need for separate controller
• Complete wiring harness included for straightforward installation
• Compatible with most GM 4L60E, 4L65E, 4L80E, and 6L80E automatic transmissions
• Supports engines up to 650 naturally aspirated horsepower

This kit provides everything needed to convert your LS engine to a modern, self-tuning fuel injection system with full transmission control. The EZ-EFI technology continuously adjusts fuel delivery based on operating conditions, while the XIM module manages ignition timing and the TCU controls transmission shift points and torque converter lockup. Ideal for street rods, muscle cars, off-road vehicles, and any project requiring a complete, bolt-on EFI solution.