S-MAX SW300 Blow Off Valve

S-Max's SW300 is not just a blow off valve, it is a musical instrument. The SW300 has one of the most unique customizations features in the market. With a simple adjustment (no tool required) you can change the blow off sound of your turbocharged engine; from an ear piercing whistle to a more benign whoosh that will keep your neighbors from calling the cops.

The SW300 has small ports that change the resonance of the air flow. Both the SW300 and our more traditional SL300 blow off valves are built with performance and looks in mind. They will not leak under high boost pressure or open at idle and minimize stress on your turbo charger. They mount easily with a single aluminum flange that can be welded to any aluminum charge pipe or hooked to a silicone coupler. Available in polished, red or blue finish.