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C&L Bypass Valve Adapter - Black (15-19 EcoBoost)

Market Price $76.99 You Save 9% ($7.00)
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$69.99

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  • Item 389869
  • MPN# 389869

Ship to: Ashburn - 20149
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    Features, Video & Details

    • Turns Factory BPV into a BOV
    • Distinctive Turbo Sound
    • Billet Aluminum Construction
    • Black Anodized Finish
    • No Tune Required
    • Easy Bolt-On Installation
    • Made in the USA
    • Fits All 2015-2019 EcoBoost Mustangs with Stock BPV

    Review & Installation Video

    Review & Install Video

    Hey, guys, Stephanie with americanmuscle.com, here with a review of the C&L bypass valve adapter for 2015 and newer EcoBoost Mustangs.You're gonna want to check out the C&L bypass valve if you still have the OEM bypass valve or solenoid, but you aren't in love with the lack of sound that it provides and you'd much rather have the sound that a blow-off valve produces, but you aren't looking to spend blow-off valve money. You're looking at having to drop over $250 for a true blow-off valve, but the C&L bypass adapter here can get you the same sound effect for about $200 less.Being a factory turbo car, the EcoBoost doesn't come from the factory with a blow-off valve, as everyone in the world of aftermarket turbo life knows it. The car has a bypass valve that doesn't allow the unused air to vent hemispherically, which means you don't get the blow-off valve noise when you build boost and let off the throttle quickly. The C&L adapter will turn the factory bypass valve into a blow-off valve and allow the unused air to vent into the atmosphere, which in turn gives you that crisp release of the pressurized air. What's nice about this is that it's inexpensive when you compare it to the cost of a blow-off valve. It's very easy to install, and it does not require a tune. You aren't changing much here. You're just rerouting the excess air that builds up and isn't used when you spool the turbo and let off the throttle before all that boost is used.The bypass valve itself is made from billet aluminum and it's CNC machined, so it will have a good fit. This one here is anodized black, but C&L does have one that has a mod polished finish for those of you that don't want black.When it comes to price, you're looking at spending about $70 for this bypass valve. To put that in perspective, you can plan on spending $200-plus for a true blow-off valve, so it's safe to say that if you're just looking for the noise, this is a much more budget-friendly way to achieve it.Now, I will say that if you plan on modding your EcoBoost, going with a tune, upping your boost, and then eventually you might be looking at upgrading your charge piping, if you're looking at upgrading your charge piping, then you might consider going with a true blow-off valve instead because you're gonna need to relocate and upgrade the blow-off valve anyways. The stock bypass valve won't be able to be used with the upgraded charge piping.As far as the install goes, it's a very easy install. It should take about a half an hour's time. It's a one out of three wrenches on the difficulty meter, and you'll need a five-millimeter Allen key as far as tools to get the job done. You need to get to the stock valve on the factory charge piping, disconnect the wiring harness, and remove the bypass valve, just a few five-millimeter Allen head screws. The C&L adapter will be placed between the stock bypass valve and the charge pipe. You can then reinstall the bypass valve with the adapter using the longer bolts that are provided for you. Once they're bolted down, you can just reconnect the wiring harness.Wrapping things up here with the C&L bypass valve adapter, this adapter will vent the unused pressurized air to the atmosphere, which will give the distinct turbo blow-off noise that most turbo people want. It's very easy to install, it doesn't require a tune, and you can check it out more online, right here at americanmuscle.com.

    Distinctive Turbo Sound. The turbocharged EcoBoost Mustang is a great car, but the one thing that hits a sour note with hardcore boost fanatics is the lack of that signature turbo sound. By installing a C&L Bypass Valve Adapter the unused pressurized air will now vent to the atmosphere making that distinct sound all turbo owners know and love.

    Billet Aluminum Construction. Proudly made in the USA from high grade billet aluminum, this C&L Bypass Valve Adapter has been precisely CNC-machined for a perfect OEM style fit. The BPV Adapter is then completed in a black anodized finish for aggressive under hood styling.

    Easy Bolt-On Installation. C&L's Bypass Valve Adapter simply mounts between the factory charge pipe and the stock Bypass valve. C&L includes the necessary hardware needed for an easy bolt-on installation that takes less then an hour.

    Application. This C&L Bypass Valve Adapter is designed for use on 2015 to 2019 EcoBoost Mustangs equipped with the turbocharged 2.3L Inline 4-cylinder engine, that are still running the OEM bypass valve/solenoid. No tune is required for operation.

    Fitment: 2015 2016 2017 2018 2019 Details

    CA Residents: Warning: California's Proposition 65

    What's in the Box
    • (1) Spacer
    • (1) Large O-ring
    • (1) Small O-ring
    • (3) Mounting Bolts
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Questions & Answers (19)

    5 Top Rated Questions

    Since its running out into the atmosphere, will it make my car run rich? Many online forums say it can make ur car run rich, which leads to it smelling, bad mpg, along with fouling the plugs and cats. I already ordered it but now fear installing it.

    • Using the C&L Bypass Valve Adapter can cause a rich condition on shifts if not used with a tube.

    Helpful (8)

    Hi, can you please tell me if the C L bypass valve adapter will work on the 2018 Mustang Ecoboot 2.3 L engine? The range seems to be 2015 - 2017. Was there a change to the 2018 model that prevents its installation and use?

    • The C&L Bypass Valve Adapter has not yet been tested with a 2018 Model to confirm fitment. Once fitment has been confirmed, we will update the product page.

    Helpful (1)

    do i need any other parts in order to install this blow off or that's all i need to buy

    • The C&L Bypass Valve Adapter will allow your factory bypass valve to vent to atmosphere, rather than recirculate, allowing it to work as a blow off valve. All required components are included.

    Helpful (1)

    Will this affect my 2016 Ford Mustang EcoBoost premium in any way? Will it affect the turbo? A lot of reviews say that there is a sudden "psshhh" noise while driving on the highway; why is that? And is it bad if it does that? Will this negatively affect the ECU in any way?

    • If installing the C&L Bypass Valve Adapter without a tube this can cause a rich condition on shifts. While this installed will alter the sound on your vehicle this should not in any negative way affect your vehicle.

    Helpful (0)

    Will this Bypass Valve Adapter have any kind of negative effect on my 2016 Ford Mustang EcoBoost? Will it cause turbo problems? Will the air venting into the atmosphere instead of back into the loop affect my car in any way? Will there be a loss of boost? And a lot of reviews say that there's a "psshhhh" sound randomly when driving on the highway; will that happen? If so, is that bad for the car?

    • We would advise that when using the C&L Bypass Valve Adapter this can cause a rich condition on shifts if not used with a tube. This should not cause a lack of boost or any other issues on the vehicle. This will indeed alter the sound of your vehicle and this should not negativelyaffect your vehicle's performance. 

    Helpful (0)
    Post Your Question
    10 More Questions
    Could installing this cause a cylinder misfire?? I bought and put this part on my 2016 Ecoboost about a year ago and only a few days ago did I have my Check Engine light come on (for a cylinder 3 misfire). After taking it to the dealership where I bought my car brand-new just 2 years ago, the only thing the mechanic could say was that this was causing the problem. So, is that possible? Because I'd really like to put it back on! 1 answer
    Will this cause my mustang to lose any power? Also, will the stock boost gauge still work? 1 answer
    will the c l bypass valve adapter negatively affect my performance? 1 answer
    Is it possible that you can lose any power with this adapter on? 1 answer
    will this bypass valve cause my stock turbo to flutter and wil it cause the turbo to spool up slower 1 answer
    Is it illegal to have this in California? 1 answer
    Installed it easy. Only thing is now on the boost / vacuum gauge it goes back left instead of right ? Is this normal? 1 answer
    Will this item void my warranty? If so, is there anywhere I can purchase the OEM screws that needed to be removed to install this part (I lost them)? 1 answer
    Can you use this adpater in conjunction with GFB's DV ? 1 answer
    Will the C L Bypass Valve Adapter void any warranties? 1 answer

    People Who Bought This Item Also Bought

    Customer Reviews (100+) Write a Review

    Overall Rating 4.7

    out of 5 stars




    • 5/5

      October 16, 2018

      Just like blow off valve

      This adapter sounds just like a blow off valve.Best mod for the money it costs

      ReneG

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      October 11, 2018

      best thing for your car

      This item is such a cool addition to your car. The sound it allows your car to make definitely will have heads turning. Love Love Love it.

      LorraineP

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      October 11, 2018

      Blow of

      Easy to install by my self and it works awsome! 100 recommend

      FranciscoB

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      October 10, 2018

      Does what it advertises

      I still feel kinda rice with it but I live in California and can't do any real performance mods that would require a real blow off valve so this gets the job done. #repealprop65

      ColtonC

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 1/5

      October 08, 2018

      Worst product I’ve ever purchased

      Loved the sound and the bypass valve until the first time I got on the highway. My boost constantly dumped while on the throttle going up hills, making me lose power. Turbo lag has gotten terrible. And 50 of the time the boost dumps, it won’t stop blowing until the throttle is completely let off, and the turbo won’t spool. Never been more disappointed in a mod

      TylerG

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      October 05, 2018

      Worth every penny

      Definitely a fun and cheap add. Very loud sound even with the windows up. Gets the nice psh noise. Very cheap, but effective mod.

      JoeyM

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      October 05, 2018

      Works as intended.

      Sounds nice, atmosphere blow by. Exactly what you need if you want your Ecoboost to sound like a Fast and the Furious car!

      Jnovuse

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      October 01, 2018

      bypass valve

      love the sound that it makes and when people look it

      JenniferM

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      September 30, 2018

      Bypass

      Super .....exelent bypass ...exellent sound ...i have very glad with american muscle ...thanks

      AlejandroL

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 1/5

      September 27, 2018

      Waste of time...

      5 min in check engine light comes on... Back to stock and no problems

      Jessica

      Year: 2018 Submodel: EcoBoost

      Helpful (2)

    • 5/5

      September 26, 2018

      Pretty Cool

      It comes as described. Fairly easy install and sounds really good. It’s an inexpensive mod compared to an actual blow off valve. If you plan on leaving everything stock but want a cool sound, I would recommend this.

      Jordan

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 3/5

      September 24, 2018

      Love it and Hate it.

      It sounds good when you rev the engine and has a BOV noise however I wish there was an easy way to shut it off when just cruising on the highway. It constantly has this low hiss of air coming out when just going up a hill or driving on the highway. I recently bought an MBRP street and I like the sound of the car better without the bypass valve and have taken mine off. Very easy to install just move the coolant tank off to the side.

      LaneK

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 4/5

      September 12, 2018

      Bypass valve adapter

      I liked the bypass valve at first. The install was easy and it fit great. After about a week of having it on I just felt like the sound was a little obnoxious. It’s a great product and worked just like it was supposed to, but it just wasn’t for me.

      StevenC

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      September 05, 2018

      Great product

      This is a great way to make your EcoBoost sound more like a sports car... since there is absolutely nothing you can do to make a 4-cylinder EcoBoost sound tough... You may as well try and make it sound slick and this does the trick.

      RickS

      Year: 2017 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      September 03, 2018

      C L BYPASS VALVE ADAPTER

      I love the product it sounds great on my 2018 mustang thank u american muscle

      AnthonyA

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      September 02, 2018

      Great

      Exactly what It says it is. Great sound and easy install

      ZacT

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      August 31, 2018

      Awesome Product Awesome Price

      Gave me the sound Iv been wanting from my ecoboost!!!! $70 well spent

      Jaye

      Year: 2015 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      August 30, 2018

      Great value!

      Sounds awesome. Simple bolt on costs a whole lot less than a BOV. .

      ShehryarM

      Year: 2018 Submodel: EcoBoost

      Helpful (1)

    • 5/5

      August 30, 2018

      Great mod for your ecoboost

      Great mod for the price. When you realse your foot off the gas you can really hear the boost. For an ecoboost sounds great. Easy to install took me about 30mins.

      Aristotle

      Year: 2017 Submodel: EcoBoost

      Helpful (2)

    • 5/5

      August 29, 2018

      Head turning deal!!!

      I am completely satisfied with this product!... easy install, low price and you get results that you are looking for... it’ll turn heads guarantee.

      JorgeP

      Year: 2018 Submodel: EcoBoost

      Helpful (2)

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