The EVOPS Blow Off Valve Kit is designed to allow the pressure in the charge tube to be released when the throttle is closed.
The reasons virtually all high performance vehicles incorporate a blow off system are if the pressure in the charge tube cannot escape, the turbocharger is trying to compress against a closed throttle plate.
This not only stalls the turbo, but is extremely hard on the turbocharger bearings. With a stalled turbo, the time it takes to spool the turbo back up when the throttle plate is reopened is substantially longer.
Not only that, the engine takes a gulp of super heated air that is left over in the charge tube from being compressed against the throttle plate.
Our blow off valve kit is designed to release the built up pressure in the charge tube when the throttle is closed.
This greatly reduces turbo stall, prolongs the life of the turbocharger and makes on/off/on throttle transitions far more responsive.
A blow off valve is a must for tuned/big turbo applications.
This kit is made to go with our Silicone Charge Tube Kit and has the correct size opening and clamps.