1、Increasing the turbo response up to 900 rpm in the early stages of the rev range means you can increase the performance and response of the engine without even increasing the maximum boost level. 2、The one‑way T valve controls the boost spike better than the manual controller, and the high and low boost settings are fully adjustable. 3、Use two adjustable boost levels to increase fast boost response. Switch between high and low boost instantly. Ideal replacement for factory boost controllers. 4、Equipped with mounting hardware and toggle switches for dual‑stage boost regulation of low and high boost. 5、Manufactured from high‑grade aluminum billet, it has enhanced strength and durability. After polished and anodized, the boost pressure can be adjusted accurately and simply. 6、This dual stage boost control valve series is very suitable for lightly modified turbocharged engines, and is very suitable for increasing the boost level of factory turbocharged cars and turbocharged engines. Item Type: Dual Stage Turbocharger Boost Electronic Controller Material: Aluminum Alloy Colour: Black Specification: 1 Set (including accessories required for work and installation) Application: 12V car universal Features: Improve performance Reduce turbo lag Reduce turbine spikes The turbine response can be improved by up to 900 rpm in the speed range Reduce wastegate creep and make your turbocharge faster Door control system brings faster improvementDescription: Choose between high and low boost while driving. Great replacement for factory boost controllers. High and low boost settings are fully adjustable. iPR boost controller allows increasing boost approximately 210% over internal wastegate setting and 110% over external wastegate setting. An effective and simple way to control boost level and generate more power from your engine. Mechanical boost controller is a manual boost control system that utilizes a pneumatic regulating valve bearing to manipulate boost pressure levels. 1 x Turbocharger Controller 1 x Black Tube 1 x Blue Working Wire Harness 1 x 3-Way Valve 1 x Manual Switch 1 x Fixed Iron Bracket 2 x Fixed Clamp 3 x Screw 4 x Gasket