Product Description

Michigan Motorsports LS1 3-Wire to LS3 LS7 5-Wire MAF Adapter Harness | Blade Style MAF Swap Connector

Converts 3-Wire LS1 MAF to LS3 LS7 5-Wire Blade Style | Plug & Play LS Swap Solution | No Cutting Required

Upgrade your airflow system the right way with the Michigan Motorsports LS1 3-wire to LS3/LS7 5-wire MAF Adapter Harness. Designed specifically for seamless LS swaps and intake upgrades, this plug-and-play adapter allows you to run a modern LS3 or LS7 blade-style (slot) MAF sensor on factory GM 3-wire harnesses—like those found on 1998-2002 F-body LS1 applications—without cutting or modifying your wiring. This harness ensures a clean installation, maintains proper signal integrity for accurate airflow readings, and gives you the flexibility to revert back to a factory 3-wire MAF at any time. Built with durability and reliability in mind, it’s the ideal solution for performance builds and modernizing older LS setups.

Key Features & Benefits

3-Wire to 5-Wire Conversion: Allows use of LS3/LS7 blade-style 5-wire MAF sensors on factory GM 3-wire harness systems.
Plug & Play Installation: No cutting or splicing required—installs directly into your factory wiring harness for a clean, professional setup.
Perfect for LS Swaps & Upgrades: Ideal for converting to modern blade-style MAF sensors in performance builds and intake system upgrades.
Reversible Design: Easily return to a factory 3-wire MAF setup without modifying your original harness.
Reliable Signal Transfer: Ensures accurate airflow data for proper fueling, tuning, and engine performance.

Key Fitments

Vehicle Compatibility: Commonly used on 1998-2002 GM F-body LS1 applications and other vehicles with 3-wire MAF harnesses.
Sensor Compatibility: Designed for LS3/LS7 blade-style (slot-in) 5-wire MAF sensors only.
Important Note: Will NOT work with LS2-style or other aftermarket 5-wire MAF sensors—verify sensor type before purchasing.

LS1 3 wire MAF Harness to LS3 5 Wire MAF Adapter LSX LS Swap Mass Air Flow