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Regular Price: $278.00 - Instant discount: $41.70 = $236.30
Fitment Information:
2015-2021 Subaru WRX
2014-2018 Forester XT
Add horsepower, quicker response, and reliability with the PERRIN BOV. A must-have replacement for the leaky, slow responding, and plastic OEM blow off valve.
Features:
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.
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 drivability between shifts. While this can be set up as a vent-to-atmosphere style blow off valve, we only recommend that on cars running aftermarket Speed Density type tuning (cars without mass airflow sensor).
Install was pretty straightforward. Fit and finish is spot on. Much louder than stock. Running Cobb stage 2 with protune but seems to be jumpy at high boost. Will have tunner double check but normal driving is fine.
Phenomenal product and very straightforward to install! Paired this with my already installed Cobb SF Intake and Cobb Cast Aluminum Turbo Inlet and noticed an immediate change in how the car holds boost while going through gears! The added noise is also a great bonus. Highly recommend!
Holds boost well, sounds good, easy install!
Sounds very good. Almost like a whip. Install was easy and being able to adjust the spring is a nice touch.
Easy installation I will say it is bigger than all the other bypass valve on the market so if you have a front mount be prepared to make some clearance to your fan shroud but overall sounds amazing
Installation was smooth and no fitment issues with my fmic. Performs and sound better than factory BPV and adjustments are quick and easy! I recommend noting where the cap position is when installing, it will turn a bit while pushing into the couplers but easy to put back in original position. Import Image delivery was quick and love that I earn Build Bux on every order!
The Perrin BPV is built with great quality. It’s heavy and really feels more substantial than the plastic stock part. It’s Perrin quality. But IIR is awesome! My product was shipped the same day and I received the Perrin BPV within 3 days or so. They have cheetah fast shipping and great communication. A+ ⭐️⭐️
Excellent quality BPV. Installed with Perrin FMIC and 3" turbo inlet. Fit perfectly.
This came in and installed in minutes. No cutting or trimming. Feels solid! Tested it for leaks and there were ZERO! Good upgrade from the stock leaky one.
IIR shipped it out super fast! Took 2 days!
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