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COBB LF Bypass Valve 2015-2021 WRX / 2014-2018 Forester XT - 745670 - Subimods.com

COBB LF Bypass Valve 2015-2021 WRX / 2014-2018 Forester XT

$370.00
$370.00 - $370.00
$370.00 - $370.00
$370.00
40 In Stock, Usually Ships within 1-2 Business Days
SKU 745670
by COBB Tuning

DETAILS

The C.A.R.B. Certified COBB LF BPV is a compact and lightweight by-pass valve that is capable of holding very high boost pressure without leaking. Its updated design reduces control volume by 30% allowing for extremely fast venting of boost when actuated. Innovative engineering and precision manufacturing result in a compact package able to fit in the confines of a tight engine bay. Due to the low weight of the components, the moving parts in the LF BPV have less inertia and can respond faster than heavier components in other bypass valves. This updated design uses a Banjo-fitting vacuum port which provides 360 degree adjustability of hose routing. This results in a simpler install and less potential leak points than the NPT ports. This new design also includes a piston o-ring seal that is twice the diameter of the old design allowing more seal compression and reduced wear. Adjustability of the spring seat is no longer needed due to the updated spring and seal design which provides a 60% increase in clamping force at peak boost while maintaining similar operation at idle and transient loads.

This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number:

D-660-36

D-660-83

Customer Reviews

Based on 15 reviews
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Evan
Great quality and awesome sound

I recently installed this cobb BPV, along with the Cobb turbo inlet, ebcs, charge pipe, and top mount. This feels like an entirely different car. Feels so much better than stock I wish I had done it sooner.
The BPV fit well with the rest of the cobb brand mods. Very easy to install and the sound is great and louder than expected for not venting to atmosphere. I was hesitant on the price at first but would definitely recommend.

Evan,

Thank you for your 5 Star Review on the COBB LF Bypass Valve.
We are happy to hear your WRX feels transformed. That combo of COBB parts really wakes it up!

Regards,

D
DiP
Feel the pressure

Stepped up from a boomba and this for sure feels crisper, easy install, solid manufacturing!

DiP,

Thank you for taking the time to leave a 5 Star Review! We are glad to hear the COBB LF Bypass Valve offered a noticeable improvement over your previous setup.

Regards,

A
Anonymous
Very easy install

Really did not think this would make a big difference but when changing gear at higher rpms you can rear hear the blow off valve and man dose it sound great

Frankie,

Thank you for your 5 Star Review! We are thrilled that the bypass valve exceeded your expectations, especially with the sound during gear changes at higher RPMs. Enjoy the upgraded experience!

Regards,

A
Aaron S
Great Sound

Very easy to install and adds some great sound effects to your driving experience.

Thank you for your 5 Star Review, Aaron.

We appreciate your feedback and are thrilled that the bypass valve was easy to install and enhances your driving experience with its sound effects.

Regards,

F
Frankie
Sounds great

Didn't think switching this would make that much of a difference but man did it ever

Franklin,

Thank you for your 5 Star Review! We are happy to hear that the COBB LF Bypass Valve made such a noticeable difference in the sound and performance of your vehicle!

Regards,

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