APR Brake Duct Hose and Rotor Backing Plates for 15-21 WRX/15-17 STi (CF-815654) Invidia both of which are discontinued:

both of which are discontinued: MR220159 (RH) and MR584345 (LH)

4 JG1004-3386 86

Overboost protection and programmable alarms

3 JG1004-3543  NOTE: Bore sizes 86

This was coded from ground up to produce a much more powerful

APR Brake Duct Hose and Rotor Backing Plates for 15-21 WRX/15-17 STi (CF-815654) Invidia both of which are discontinued:Designed to integrate with the APR Carbon Fiber Cooling Ducts to route fresh air to your front brakes. Includes carbon fiber rotor backing plates to mount and route your hoses along with zip ties and clamps. Vehicle Fitment: 2015 2021 Subaru WRX 2015 2017 Subaru STi Note this does not fit 2018+ STi Features: Carbon fiber construction High temp, high pressure construction to withstand heat Super lightweight Fade resistant UV epoxy coating Pre drilled