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Boomba Bypass Valve Red 2015-2021 WRX / 2014-2018 Forester XT

by Boomba
SKU 031000030200
Save $25.60 Save $25.60
Original price $256.00
Original price $256.00 - Original price $256.00
Original price $256.00
Current price $230.40
$230.40 - $230.40
Current price $230.40
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This high performance recirculating bypass valve is precision machined out of aircraft grade billet aluminum. It features an internal brass piston design and is pressure tested to withstand up to 75psi, allowing it to compliment even the most aggressive turbo builds. Spring pre-load determines the pressure differential required across the piston before the BOV opens and releases the pressurized intake charge. Designed to be a replacement for the OEM bypass valve and is available in 4 different colors.

-Larger cross section compared to stock

-100% recirculating

-Higher flow

-Pressure tested to 75 PSI

-Easy install

-No need for re-tune

Customer Reviews

Based on 27 reviews
96%
(26)
0%
(0)
0%
(0)
4%
(1)
0%
(0)
K
Km
BOOOST

Huge Difference on my car with this. boost hold far more steady. i dont get any high flutter. and the sounds!! turbo noises for days

KM,

Thank you for the 5-Star Review and for sharing your experience with the Boomba Bypass Valve. We are happy to hear that it made a huge difference on your car, providing a steady boost and eliminating high flutter. And of course, who doesn't love those turbo noises? Thank you for choosing Subimods and happy driving!

Regards,

R
Ryan
Stutututu

I bought this bypass valve specifically because I saw videos of it producing that signature turbo flutter sound. I was also one of those guys who was saying "surely that's not compressor surge, that's just the valve chattering" while watching videos.

Take it from me now that I've installed it and heard it, it's compressor surge, which will likely decrease the lifespan of your turbocharger. It's the price you pay for cool stututu noises.

One thing I've noticed though is that the flutter is more prominent when coming off of 5-10 psi of boost. Letting off at higher boost pressures, the flutter tapers off since the bypass valve is opening more freely. On wide-open-throttle pulls, the turbo doesn't flutter at all. So, you can imagine this bypass valve as a more "stiff" bypass valve than the OEM one, requiring more force to open completely. That said, the valve may do damage to your turbo due to the compressor surge but it's a nice happy medium between completely deleting your boost pressure relief valve (or installing a block-off plate) to get that signature flutter noise, and having the OEM bypass valve with no flutter at all.

Ryan,

Thank you for taking the time to leave a 5 Star Review and share your experience with the Boomba Bypass Valve. We understand your excitement for the signature turbo flutter sound and appreciate your honesty about the potential impact on the lifespan of the turbocharger. We strive to provide high-quality products and will take your feedback into consideration for future improvements. It is good to know that the flutter is more prominent at lower boost pressures and that the valve is a happy medium for those who still want the sound without completely deleting the boost pressure relief valve. Thank you for choosing Subimods, and we hope you continue to enjoy your new BPV! Happy boosting!

Regards,

J
J.B.V.
Awesome!

It makes driving really fun especially that satisfying, clean, and aggressive sound it produces. I really like it and I would 100% recommend it.

Jaime,

Thank you for your 5 Star Review! We are thrilled to hear that you are enjoying the Boomba Bypass Valve on your WRX/FXT. This bypass valve is a great way to enhance your driving experience, and it sounds like you are happy with performance and look it provides! Happy driving!

Regards,

S
Sergio

Awesome product!!!! I installed intake with the boomba bypass and love every second of it.

Sergio,

Thank you for sharing your satisfaction with the Boomba Bypass Valve for your vehicle. It is fantastic to hear that the installation alongside your intake has been a rewarding experience, and you are enjoying the performance enhancements it offers. Should you have any further inquiries or need assistance in the future, please feel free to contact us. We appreciate your 5 Star Review! and happy driving!

Regards,

T
Talon
Love it

Sounds aggressive, works great so far. Highly recommend if you're wanting all those fun noises a turbo charged car can offer.

Talon,

We appreciate your 5 Star Review of the Boomba Bypass Valve! We are pleased to hear that you are enjoying the aggressive sound and that it has been working well for you. Your recommendation for those seeking the thrilling noises that a turbocharged car can offer is spot on! Enjoy!

Regards,

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