TurboXS RFL Blow Off Valve WRX 2002-2007 / STI 2004-2021 / Forester XT 2006-2008 vendor_Perrin too many to count

too many to count

The installation requires basic hand tools and does not require permanent modifications to the vehicle

Subaru WRX 2008-2014 w/ 5x100 STI Brembo Swaps*

this intake kit includes a Lifetime Warranty

TurboXS RFL Blow Off Valve WRX 2002-2007 / STI 2004-2021 / Forester XT 2006-2008 vendor_Perrin too many to countPart #: WS02 XS RFL With new and improved styling, the WS02 XS RFL remains true to it's roots it's still really loud! Like all our valves, the RFL relieves compressor pressure surge caused by changing gears or backing off the throttle and has been used on turbo charged engines running upto 35 psi boost. If you need to ask how loud it is, this valve is too loud for you! This blow off valve comes everything needed to install.