Blitz Venturi Drive Super Sound Blow Off Valve - Release Type - Supra JZA80
The all new ribbed main body dissipates heat more effectively and the venturi shaped funnel creates a sharp dynamic sound.Venturi Drive dump valves also feature "Dual Drive" for maximum response, a small port for low boost and a larger port for high boost.
Manufactured from die cast polished aluminium with a brass piston and a rubber diaphragm, meaning they can easily cope with boost pressures up to 1.2 bar with the supplied spring.There is an alternative hard spring for boost pressures above 1.2bar and also a soft spring available for very low boost applications. (please see DV Spares)They are also tension adjustable.
This kit is a Release Type and includes everything needed to install onto your vehicle.