Blow Off Valves

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 subdued whoosh. S-MAX BOV's are made from high quality billet aluminum, powder coated, and mount easily with a single flange that can be welded to any aluminum charge pipe or hooked to a silicone coupler. They will not leak under high boost pressure or open at idle, to minimize stress on your turbocharger.