Looking for aftermarket parts to modify or upgrade your Subaru WRX STI with wiring harnesses? At Tunersports.com we carry a huge selection of the top name brand performance wiring harnesse parts and accessories for your WRX STI.
Whether you have a 2015 or 2021 Subaru WRX STI in Base to Type RA trim we have you covered. We have 1 wiring harnesses available to mod your WRX STI. All parts have free shipping to the Continental US 48 States.
 IN STOCK WS15-HHWHThe TurboXS 2015 - 2021 WRX STI Hella Horn Wiring Harness plug and play harness is the best on the market for Hella horns. It is made with high-quality materials and construction, and it is easy to install. The harness includes all the necessary connectors and wires, so you can simply plug it in and... Turbo XS 15-21 Subaru WRX STI Hella Horn Wiring Harness 2015-2015 Subaru WRX STI Launch Edition 2015-2021 Subaru WRX STI Base / Limited 2016-2016 Subaru WRX STI Series.HyperBlue 2018-2018 Subaru WRX STI Type RA 2020-2020 Subaru WRX STI S209 $55.53 |