I'm running the rjc boost controller
My car was overboosting very badly before I decided to try the boost controller made by RJC. It is a valve that goes inline from a boost source. The other side of the valve goes directly to what every you have controlling the boost (wastegate) be it a stock type gate or a racegate style or whatever. The valve is adjustable and the idea behind the valve is it doesnt allow the wastegate to open until the boost gets to a certain psi and then the wastegate opens 100% allowing the boost to bleed off. I am very pleased with the product and like I said would probably have replaced more gaskets if not do to this reasonably inexpensive valve.
Jerry Berger