S13 S15 EVO GT4 SUBARU IMPREZA STI DUMP VALVE BOV TURBO

      The Sequential BOV is a pull type relief valve, unlike other BOV's which are push spring type & are prone to leaking. This BOV is actuated by pressure alterations only, ensuring quick valve response & complete closure during idle. Standard BOV's must utilize large valves in order to accommodate high boost/power application. However, these large valves react slowly & require high activation pressure to open. Smaller, fast reacting valves, do not permit the air flow required for high horsepower. The BOV incorporates both for maximum performance. It is engineered utilizing a small primary valve for ultra quick activation along with a secondary valve for additional relief capacity. The BOV is made of billet aluminum & emits a unique, aggressive sound." Bottom line is it makes a really cool sound and looks great.

• Keeping turbo spooling between gear changes reduces Turbo lag,
• The body is constructed of very high quality Machined Aluminium for durability,
• Matt Black finish, 
• Rated up to 40psi of boost,
• Gains back 7-9 BHP by stopping the turbo ‘stall’ effect of your existing Bosch dump value,
• Increases your turbos life span,
• Come with fitting as shown in picture to plumb in, 

Brand new in the box, Actual Picture of Item you will receive

Please read the terms & conditions of this sale in my ME page