TurboXS RFL Blow Off Valve Subaru WRX 2008-2014 / Legacy GT 2005-2009 RX8_2004-2011 Some customers choose to regap

Some customers choose to regap these plugs to correct misfiring or tune for optimal spark -- do so at your own risk -- a slide-type plug gapper can damage the fragile iridium tip

or carbon fiber and top of the line materials

Model: MMRAD-350Z-03 MSRP: $320

Includes Alignment tool

just great quality parts and guaranteed performance for your Evo

TurboXS RFL Blow Off Valve Subaru WRX 2008-2014 / Legacy GT 2005-2009 RX8_2004-2011 Some customers choose to regapPart #: WRX08 RFL The TurboXS RFL blow off valve kit for Subaru WRX will give you that classic blow off valve sound that always turns heads and scares small children. Famous for being the loudest vent to atmosphere blow off valve on the market, the RFL measures an astounding 115db at 15psi. If you want your WRX to be noticed, this is the valve to get. The TurboXS RFL valve will allow your car to hold more boost and will not leak under stock or even