APR Carbon Fiber Rear Bumper Skirts Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 ForesterXT_2004-2008 designed and manufactured to be

designed and manufactured to be stronger

All‑aluminum construction for improved durability and heat transfer

In the US no one use the stock BOV there for they need to weld closed or block off the large nipple on the greddy intercooler kits and other similar kits

In such cases

Application: Subaru 2005-2009 Legacy GT and 2008+WRX

APR Carbon Fiber Rear Bumper Skirts Scion FR-S 2013-2016 / Subaru BRZ 2013-2020 ForesterXT_2004-2008 designed and manufactured to bePart #: APR FS 522008 APR Carbon Fiber Rear Bumper Skirts for the Subaru BRZ Scion FR S are the final part of the aerodynamic kit. Made of lightweight and durable carbon fiber composites, APR Rear Bumper Skirts help reduce lift at high speeds by preventing air from rolling underneath the car. The reduced lift helps to stabilize the car during high speed cornering and helps to increase traction for faster lap times.