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The Turbo XS recirculating bypass valve is a drop-in replacement for WRX and STI turbo systems, specified for 2002–2007 WRX and 2004–2009 STI applications. It provides a racing-style bypass response while keeping recirculation in closed-loop systems. This valve suits WRX/STI turbo plumbing and supports consistent boost behavior under throttle changes without altering the vehicle’s recirculating setup.
Turbo XS 02-07 WRX/ 04-09 STi Recirculating Bypass Valve
