FAST 30365-06KIT EZ-EFI Marine Self-Tuning Master Kit with Inline Fuel Pump

The FAST EZ-EFI Marine Master Kit brings proven self-tuning fuel injection technology to marine engines, eliminating the cold-starting problems and rough idle commonly experienced with carbureted boat engines. This complete marine-specific system delivers improved throttle response, better fuel economy, and enhanced overall performance on the water.

Complete Master Kit Includes:

• Marine-specific blue ECU engineered for harsh saltwater environments
• Die-cast 4150-style throttle body with four injectors supporting up to 650 horsepower
• Color touchscreen handheld display with setup wizard
• Mercury Marine-specific O2 sensor adapter plate for bolt-on installation (fits most 1980s-2002 Mercury wet exhaust systems without welding)
• Inline fuel pump kit with all necessary hardware
• Specialized O2 sensor bung for marine applications

Key Features:

• True self-tuning technology—no laptop or tuning experience required
• Simple Wizard setup answers basic questions and the system tunes itself
• Bolts directly to 4150-style carburetor mounting flanges
• Works with existing ignition system—no additional modifications needed
• 74 lb/hr injectors provide excellent fuel atomization and efficiency
• User-tunable for those who want to fine-tune performance parameters

This system transforms marine engine performance by providing precise fuel delivery across all operating conditions, from cold starts to wide-open throttle. The marine-grade components are built to withstand the demanding conditions of saltwater boating environments.

Note: This product is not CARB legal and is intended for use on uncontrolled (non-emissions controlled) marine vessels or closed-course competition use only.