Sequential Blow Off Valve SQV IV Style

When it comes to managing boost, a blow-off valve is a popular and practical upgrade. Not only does it create the distinctive turbo sound that many enthusiasts love, but it also serves to protect the turbocharger on your Mazda MX-5 Miata build.

By venting excess intake pressure into the atmosphere, the blow-off valve prevents backpressure buildup when the throttle closes, eliminating the phenomenon known as turbo flutter. This keeps your turbocharger running smoothly and reduces unnecessary wear. An essential addition for performance and durability, this blow-off valve provides both a functional and auditory aspect to your driving experience.

At lower pressure, the small membrane opens (up to 0.2–0.5 bar), while at higher pressure (0.5–2.5 bar), both membranes open simultaneously. The price includes an aluminum adapter for a 25mm hose or welding, as well as all necessary mounting hardware.

A no-name replica of the famous HKS valve. Good build quality with our SkidNation 2-year warranty for a peace of mind (longer warranty can be purchased during checkout).

Universal fit.

Shipping worldwide.