Perrin Performance

Perrin Recirculating Blow Off Valve | 2015-2019 Subaru WRX (PSP-TAC-615RD)

Rating: 5.0 out of 5.0 (6)
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2015-2019 WRX Recirculating BOV by Perrin

The tiny outlet on the OEM BOV restricts the rate at which boost can be vented, and is prone to leaking boost. The PERRIN BOV has a much larger outlet and is fully adjustable, eliminating this concern. With large inlets and outlets, the PERRIN Blow Off Valve is sized perfectly to relieve any amount of boost pressure without fear of compressor surge. Don't be fooled by giant oversized blow off valves, these inlet and outlet sizes were chosen to ensure the perfect balance of flow and to maintain boost in your system, without ruining response by dumping too much boost.

The PERRIN Blow Off Valve cap features adjustable spring tension, which allows for an adjustment when the blow off valve vents. A looser setting will make it act smooth and more like stock. Setting it harder will cause it to vent later and with significantly increased boost levels. This adjustment is important in maintaining air within the boost system without reducing turbo response. The unique design allows you to control the volume of air released when the blow off valve vents. Adjusting the volume of air helps maintain the perfect amount of boost in your system during shifts without causing compressor surge. Venting too little can damage the turbo, venting too much air can make the throttle less responsive. This adjustment is independent of the relief pressure allowing for a totally customizable blow off valve.

It is vital that a blow off valve for your WRX recirculates the air back to the intake track to maintain proper air-fuel ratio and driveability between shifts. The PERRIN Blow Off Valve requires very little maintenance but when needed, it's very easy and quick to disassemble. Two O-rings are used to seal vital components from the elements making for extended time between service intervals. There are no special tools required and maintenance can be performed without removing the blow off valve from the vehicle.

The PERRIN Blow Off Valve cap, piston & flange are all CNC machined from 6061 Billet Aluminum. The PERRIN Blow Off Valve body is CNC machined from a single block of aluminum. This makes for a clean look that reduces potential failure points and leaks without additional parts. The PERRIN Blow Off Valve body comes in a red anodized finish and the cap comes black anodized. Included with every PERRIN Blow Off Valve are the necessary components to make this a direct bolt-on for your WRX. Each blow off valve is pre-set out of the box to work perfectly with every application.

Features

  • CNC Machined 6061 Aluminum Construction
  • Red Anodized Finish (Black on Cap)
  • Recirculates Air to the Intake Track
  • Adjustable Relief Pressure (Spring Tension)
  • Adjustable Flow Control (Air Volume)
  • Low Maintenance, No Special Tools Required
  • Direct Fit, Preset and Ready to Install

PLEASE NOTE

This item may be for in your area. See Terms and Conditions prior to ordering!

Applications

  • 2015 - 2019 Subaru WRX

Benefits

  • Faster Response Times
  • Consistent Boost
  • Perfect Seal
  • Improved Drivability

Specifications

  • Body Material: 6061 Aluminum
  • Body Finish: Anodized
  • Piston Material: 6061 Aluminum
  • Piston Finish: Anodized
  • Spring Material: Stainless Steel
  • Flange Material: 6061 Aluminum
  • Cap Material: 6061 Aluminum
  • Cap Finish: Anodized

What's In The Box?

  • 1 - Perrin BOV
  • 1ft - 1/4" Fuel Hose
  • 2.2ft - 1/2" Fuel Hose
  • Necessary Hardware
  • Instructions/Manuals
  • Warranty Information

References

Warranty

  • Manufacturer Standard Warranty

Customer Reviews

Based on 6 reviews
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J
Justin
great sound

after watching tons of videos on multiple bypass valves, i decided to go with this one, and i must say, the ease of installation, along with the great sound this thing has, makes me feel like ive made a good choice. also love the fact that this thing has quite a bit of adjustability to fine tune if need be!

A
Anonymous
Best bpv you can get

Easy installation, I can feel the difference in performance between the perrin bpv and the stock one, love the sound!

S
Seth
Waaaaa Pshhhhhhh

Tons of great sound. Perrin does it again. Easy to instal. (Side bar I recommend going from underneath.) MAPs customer service is bar none the best around. If you want though great turbo sounds from your WRX this is an amazing BOV.

B
Brett
Great BOV

I love the adjustability of it. Got my car protuned and my tuner reccommended for me to tighten it all the way down, essentially working as a BOV delete, that way there is absolutely no boost lost! Easy install and easy adjustment.

F
Frank D
Worth the money

A significant upgrade over the OEM BOV. If you are running any performance mods to your wrx, this should be one of them. Precision operation and a significantly louder symphony of exhaust gas that actually works as it should at 5 psi and under where the OEM struggles. I would recommend a boost controller with this as a secondary upgrade to assist your turbo.