Skip to content
🔥📦 No-Wait November Sales Have Landed - Shop deals ALL Month Long 🔥📦
🔥📦 No-Wait November Sale 🔥📦
Rewards Program My Wishlist Customer Support Military Discounts The Subimods Blog The Motul Market Bread Pay™ Financing Diamond Club Membership
Boomba Bypass Valve Red 2015-2021 WRX / 2014-2018 Forester XT - 031000030200 - Subimods.com

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

$230.40
$256.00
$256.00 - $256.00
$256.00
$230.40 - $230.40
$230.40
-10%
8 In Stock, Usually Ships within 1-2 Business Days
SKU 031000030200
by Boomba

DETAILS

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 31 reviews
94%
(29)
0%
(0)
0%
(0)
3%
(1)
3%
(1)
93.5
96.7
K
Kole

sounds amazing and easy install

Kole,

We appreciate your 5 Star Review! We hope you continue to enjoy your Boomba Bypass Valve! Thank you for choosing Subimods!

Regards,

J
Jared Benson
Quality in Boost

This is the only modification I’ve done to my WRX, and I love it! I’ve noticed the boost build slightly higher than average, usually only getting to around 15 psi, and now it gets to 18 psi. It seems way preppier and comes with the fun noises

Jared,

We are thrilled to hear that you are loving the Boomba Bypass Valve on your WRX. It is great to know that you have noticed a difference in boost and are enjoying the fun noises. Thank you for choosing Subimods and happy driving!

Regards,

k
kevin miller
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

User picture

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 Metcalf
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,

123

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare