A Universal Twin Piston Blow Off Valve with a Weld on Adaptor

We recommend servicing your valve every 3 years, or 20,000 miles, whichever comes sooner_x000D_ _x000D_ This twin Piston Blow off Valve is specifically designed for those that wish to install the valve by welding direct to a hard pipe installation, intake manifold, intercooler or similar. Available with a 25mm or 34mm adaptor which screws to the valve._x000D_ _x000D_ Please select the adaptor required from the options above._x000D_ _x000D_  _x000D_ _x000D_ In The Box:_x000D_ 1 x FMDVWO25 or 34 Valve_x000D_ 1 x Adaptor (Aluminium or Stainless Steel)_x000D_ 1 x Uprated Blue Spring_x000D_ 1 x Uprated Red Spring_x000D_ 1 x Forge Sticker_x000D_ _x000D_ If you wish to tune this product to fit the needs of your engine, please see the spring tuning kit below._x000D_