Perrin Front Mount Intercooler (Black Pipes/Black Couplers) Subaru STI 2015-2021 | PSP-ITR-438-2BK/BK vendor_Progress Technology Increasing the diameter of your

Increasing the diameter of your sway bars will have two main effects: They will modify handling balance in terms of steering bias (understeer or oversteer)

Increases power consistency and throttle response

your EBC Yellow Stuff Brake Pads are easy to install

Reduce body roll and fine tune your STI's handling characteristics with a set of Eibach Anti-Roll-Kit rear sway bar

60min Installation - Extremely simple with our written and video guides

Perrin Front Mount Intercooler (Black Pipes/Black Couplers) Subaru STI 2015-2021 | PSP-ITR-438-2BK/BK vendor_Progress Technology Increasing the diameter of yourFitment Information: 2015 2021 Subaru STI Features: Finish Wrinkle Powdercoat Black Boost Tube Construction Mandrel Bent Aluminum Includes coolant expansion tank and coolant overflow tank in a black powder coated finish 2. 25 inch Diameter Piping Mandrel Bent Lightweight Aluminum Tubing Beaded End to Ensure Hose Clamps & Couplers Stay Connected and Sealed Core NOT Included Difficult Installation Effort Installation Guide No Tuning Required 5 Year