PERRIN Blow-Off Valve Kit Red Compatible with Subaru WRX 2008-2014
- ...charge valve plug allows you to discharge hot pressurization to the atmosphere, lower the inlet temperature and improve overall performance throughout the operating range. You can have a clean exhaust valve sound and better performance without recirculating hot air and introducing unwanted heat into the engine..
- The drain valve plug is easy to install and easy to use. There is no need to install any tools, and the installation can be completed quickly within 15 minutes. First find the blow valve pipe joint, rotate the coupler to remove the blow pipe, then disconnect the BOV hose from the intake pipe, and install the VTA MOD into the pipe before the exhaust valve..
- This VTA mod allows you to vent the hot boost to the atmosphere instead of recycling it and creating much hotter inlet temperatures. This will lower inlet temperatures and improve overall performance throughout the operating range..
- The best part is you can have clean blow off valve sound and know you have the best performance without recycling HOT air and introducing unwanted heat into the engine..