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Vehicle Info NeededTOP STREET PERFORMANCEPART NUMBER: 743-81030
81030 GM LS1 Gen III 3-Wire Mass Airflow Sensor to GM LS Gen IV LS3 Mass Airflow Sensor Wiring Harness
Color:
$3200
Ships on 09/14/2026
Lowest Price GuaranteeMass Air Flow Sensor Connector
GM LS1 Gen III 3-Wire Mass Airflow Sensor to GM LS Gen IV LS3 5-Wire Mass Airflow Sensor Wiring HarnessConvert from LS1 to LS3 MAF Sensor OEM-Quality Connector and Terminals Includes Intake Air Temperature Sensor Plug
Top Street Performance 81030 Airflow Sensor Wiring Harness Features:
- This 1-piece wire adapter harness is designed for converting the smaller 78 mm LS1 3-wire mass airflow (MAF) sensor to the larger 5-wire LS3 car-style MAF with an integrated intake air temperature (IAT) sensor
- This plug-and-play adapter harness eliminates the need for cutting or splicing wires, allowing for a quick and clean installation when upgrading to an LS3 MAF sensor
- Ideal for performance builds, engine swaps, or upgrades requiring the larger LS3 MAF sensor for improved airflow and accurate air/fuel ratios
- Converting to the LS3 MAF sensor requires proper ECU tuning and rescaling of MAF tables to ensure optimal engine performance and accurate air/fuel mixture
LS Wiring Harness Adapters for Easy and Reliable Engine Swaps
Top Street Performance LS Wiring Harness Adapters make your engine swap easier by connecting GM LS harnesses to your vehicle’s existing electrical system—no cutting or splicing required. Built from high-quality materials for a secure fit and long-lasting performance, these adapters help ensure a clean, professional installation. Whether you're restoring a classic or upgrading a project car, Top Street Performance provides the reliable solution you need for a smooth LS swap.
Part TypeMass Air Flow Sensor Adapter
Product LineTop Street Performance GM LS Wiring Harness Adapters
BrandTOP STREET PERFORMANCE
Package Height3.0
Package Width3.0
Package Length3.0
Weight0.5 PG
Part CategoryPerformance Parts
Terminal GenderFemale
ColorBlack
Part FitmentSemi Universal
Vendor Part Number81030
Package Qty1
Package TypeEA
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