RPM Polaris 850 Turbo Blow Off Valve ( BOV ) Kit 1.75" CLAMP The TPR tensioner allows for

The TPR tensioner allows for proper setting on cold starts and then again

The ARX is made from high grade mandrel bent steel

Installation & Features:

Our slip-on flows much better than stock while giving your vehicle an aggressive look and sound without being too loud

FS (flat surface clamp)

RPM Polaris 850 Turbo Blow Off Valve ( BOV ) Kit 1.75" CLAMP The TPR tensioner allows forRPM Polaris 850 Turbo BOV Kit RPM is not new to the BOV industry by any means. We have created this BOV and its spring rate specifically for the factory 850 Turbo Polaris based on its vacuum drawn at idle and while NOT under boost. Our kit uses a Patent Pending boost refence port that installs post TB's and before the reed valves. The RPM BOV kit not only improves throttle response but takes the stress of the turbo flutter off the turbine wheel