It's pretty easy to make a make a catless downpipe that makes power.  It's much harder to make a downpipe with a catalytic converter yet...

TurboXS 2015-19 Subaru STi Front Mount Intercooler Kit  One of the biggest keys to making consistent power in a 2015+ STi is managing the...

TurboXS RFL Catback Exhaust for the Cobalt SS TC is just that "Really Fuckin' Loud".  As with anything we put our "RFL" tag on, this part...

TurboXS introduces the 2008 WRX and STI Cold Air Intake. As rule of thumb on a turbocharged vehicle you will want to free up the flow...

TurboXS RFL Catback Exhaust for the Cobalt SS TC is just that "Really Fuckin' Loud".  As with anything we put our "RFL" tag on, this part...

With new and improved styling, the BOV-H-RFL remains true to it's roots - it's still really f'n loud! Like all our valves, the RFL...

With new and improved styling, the WS02-XS-RFL remains true to it's roots - it's still really f'n loud! Like all our valves, the RFL...

Not too loud and not too quiet, the WS02-XS-HYB from TurboXS is the valve for you if you want an upgraded Blow Off Valve that you can...

Not too loud and not too quiet, the W15-XS-HYB from TurboXS is the valve for you if you want an upgraded Blow Off Valve that you can hear...

TurboXS releases the first Hybrid Blow Off Valve designed specifically tuned for the Mazdaspeed 3 & 6. The valve features an...

Specifically designed for MY 2002 - 2007 Subaru WRX and STi's will also fit the 2008-2012 STI, the WS-RBV requires no adapter kit to...

The Genesis 2.0T Blow Off Valve Kit is a complete bolt on valve. Which allows you remove the factory bypass valve and replace it with our...