Inefficient factory blow off valves (BOV) can
hinder boost response during shifts and can damage your expensive turbo
charger. Perrin's Blow Off Valves offer the best solution to the problem!
PERRIN blow off valve cap, piston & flange are all CNC machined from 6061
Billet Aluminum. The body is CNC machined from a single block of aluminum. No
additional bolt on pieces means we eliminate potential leaks.
Pressure* The PERRIN BOV features an adjustable cap which allows you to tailor
when your BOV releases. Set it up loose for a smoother release of boost at
light loads and RPM. Or crank down the cap to release boost only at higher
boost loads and RPMs. This feature is independent of relief volume.
Volume* Our unique design allows you to adjust the volume of air released when
blowing off. This adjustment is independent of the resistance to blowing off.
Venting too little can damage the turbo, venting too much air can will make the
throttle less responsive.
*Maintenance* The PERRIN
blow off valve requires very little maintenance but when needed, it's very easy
and quick to disassemble the blow of valve with no special tools required.
*Recirculating or Vent
to Atmosphere* This universal fitment has large 1.325" tube connections
for easy installation. Simply disconnect the recirculatory hose and let your
blow off valve vent to atmosphere on cars using speed density type ECU's (Cars
with no MAF).