Torque Solution Speed Density Adapter Harness for 02-07 WRX/STi (TS-WH-497) Holley and four-layer silicone couplers with

and four-layer silicone couplers with heat-resistant embedded fibers for improved tolerance against heat and pressure

" And while the airbox is doing it's job of increasing performance

Installation

AN Size: Part Number: -4AN 22504 -6AN 22506 -8AN 22508 -10AN 22510 -12AN 22512

We require a core for these finished pieces

Torque Solution Speed Density Adapter Harness for 02-07 WRX/STi (TS-WH-497) Holley and four-layer silicone couplers withThe Torque Solution plug and play speed density adapter harness for 2002 2007 WRX and STi allows you to easily switch from a MAF setup to Speed Density (SD) without having to hack up your OEM harness. This adapter harness is a direct plug and play with the OEM harness plug and GM Style AIT sensor, such as the AEM (30 2010). Requires a bung to be welded for the AIT sensor either on the throttle body side of your TMIC or on your FMIC upper charge pipe