Below you will find various electronic boost controllers mounted inside the cabin. They adjust the charging pressure via an electronic bleed valve that sits between the hose from the manifold to the turbo.
We recommend: Autogauge 2 & 3 bar boost valves - They are in top quality and at the cheapest price - Complete solution that is easy to install and program.
Turbosmart E-Boost2. Electronic charge pressure control. Max 4.1 bar. With Turbosmart E-boost 2 you can control your charge pressure very precisely and adjust it via the clock.