Upgrade your Subaru’s engine management with the Torque Solution PNP Hybrid Speed Density Adapter Harness, designed for 2002-2007 WRX, 2004-2007 Subaru WRX STI, 2005-2008 Forester XT, and select Legacy GT and Outback models. This harness lets you easily switch from a MAF setup to Speed Density without cutting or splicing your OEM wiring, providing a seamless plug-and-play experience that maintains OEM sensor integrity.

Featuring waterproof connectors and high-temperature heat shrink tubing, the 48-inch harness fits both top- and front-mount intercoolers. It connects directly to your OEM harness and a GM-style IAT sensor, requiring a welded bung on your throttle body side or FMIC upper charge pipe. This setup offers your tuner more flexibility to run MAF, Speed Density, or a hybrid tune with accurate intake air temperature readings.

Ideal for Subaru enthusiasts looking to optimize tuning without complex wiring modifications, this adapter harness is a practical upgrade for performance builds. Protune is required to run Speed Density. Shop now at Subimods to enhance your Subaru’s tuning potential.