Your turbocharged street beast demands a higher level of boost and thus a PERRIN? Performance manual boost controller is in order! Add horsepower and torque while achieving a perfect balance of response and boost level. Combined in a "twist-to-adjust" package that incorporates a custom wound internal progressive rate spring and ceramic metering ball for boost management. Applicable to all turbo charged applications.

The PERRIN manual boost controller is a simple inline device that allows the customer to adjust boost simply by shortening or lengthening the Boost controller body.  Some boost controllers use a simple adjustable bleeder (similar to a jet on a carb, if you can remember that far back) and while this can control boost, these generally provide a falling boost curve.  These systems can't adjust for more volume of air as the turbo starts to push more air.  Some boost controllers use a ball and spring only, which again can control boost, but can be a little spikey (Boost spikes are bad!). The PERRIN Manual Boost controller has both built into it!

The Ball and Spring portion of our Boost controller holds boost pressure (until the set point) from getting to the wastegate actuator. This makes for a super responsive turbo. As the pressure exceeds the set point, the ball lifts and lets pressure to the wastegate actuator.  The next feature of our manual boost controller comes into play, the bleed hole.  The bleed hole helps control the falling boost curve by helping deal with the added volume of air as RPM's increase.

These features make the PERRIN manual boost controllers perform with nearly the accuracy of an $400 Electrionic boost controller.  All you need is a PERRIN Manual Boost Controller, a good boost gauge, and some basic tuning knowledge about your car and you can quickly add horsepower and torque from your turbo motor!