Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter daily!

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

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

$69.99

FREE Shipping

  • Item 389869

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    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

    MPN# 389869

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    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?

    You Might Also Like

    Customer Photos (16) Submit Your Photo

    View All 16 Photos

    More Products You Might Like

    Questions & Answers (31)

    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 (15)

    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)

    So how do I prevent my car from running rich while using this? Other than getting a tune?

    Whats the purpose of the O-Ring Rubber all the way at the bottom (the big one?) I lost mine, is that okay?

    Post Your Question
    10 More Questions
    I have an SR Performance CAI on my 2015 ecoboost and I’m wondering if this would hinder or help the cold air intake 0 answer
    Will I need a tune in order to run this modification? 1 answer
    Is it possible to cram it to fit with the gt350 intake from the ford performance powerpac 1 answer
    does it affect the gas ? 0 answer
    Do i need to remove any stock part in order to install this ? Also, can i take it off after installing it and return the car stock ? 0 answer
    i got a 2017 mustang ecoboost. will this harm the car in anyway or weaken it even after many years ? and does it need to be cleaned regularly like intakes ? 1 answer
    Is it possible for this product to allow unfiltered air into the charge pipe? 0 answer
    Is it legal in California? 1 answer
    Will this Bypass valve work with HPS Intercooler pipes? 1 answer
    I have a new 2018 eco will this void factory warranty if it is installed in a car that has warranty on it 1 answer

    Recommended For You

    Customer Reviews (100+) Write a Review

    Overall Rating 4.7

    out of 5 stars




    • 5/5

      April 15, 2019

      Great add on

      Really love the sound I get on my ecoboost with this. I love that I can hear it inside with the windows rolled up and love how loud it can be with the windows down. Definitely makes heads turn.

      Gonzilla56

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      April 11, 2019

      Does as expected and more

      Gives you the pppsssssshhhh more than a woooosh and sounds awesome. Definitely breaks necks while driving and people dunno what just happened when you drive by with it. Easy install. Bout 20 minutes.

      EddieS

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 4/5

      April 10, 2019

      Does exactly what it claims to do

      The sound of air being released is louder than I thought it would be. But that's what I bought it for. It doesn't offer any performance gains, but sounds great when you come off the throttle. The only negative is that when I'm on the highway maintaining constant pressure on the gas pedal, I can hear a steady discharge of air. But overall, it's a cheap way to get the cool turbo discharge sound.

      Sean

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      April 10, 2019

      Love it

      Love everything about it. The sound and easy to install

      KingQ

      Year: 2016 Submodel: EcoBoost

      Helpful (0)

    • 3/5

      April 08, 2019

      C L bypass Valve

      I love the concept of this product, but after installation, I could only have it on for about 3 days and it became annoying. Randomly going off, specially while on the freeway going 70 and the valve goes off every other minute. Now it's sitting in my trunk.

      GrizzlyJess07

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 4/5

      April 05, 2019

      Good sound effect loud sounds

      Nice blowoff sound I find sometimes it bleeds when accelerating slowly in higher gears

      S550Austin

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      April 03, 2019

      It’s awesome!!

      Easy install ! Love the sound! My son and I installed it in 20 mins. Took it for a spin and giggled the whole drive!

      Val

      Year: 2019 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      April 02, 2019

      GREAT

      The sound it gives it’s totally awesome worth the $70 bucks

      IVAN

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 28, 2019

      Great sound for a little product.

      Had the rubber chair leg cover in place before purchasing the adapter. The sound is way better now and that stupid white plug is gone. Easy to install as well. Just wish it came in other colors.

      Chasity

      Year: 2019 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 25, 2019

      Exactly what u hope for

      The sound is controllable if you’re light with your foot

      K11yle

      Year: 2018 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 25, 2019

      Bypass Valve

      When you let off the throttle. People stare lol its an amazing add-on.

      DevinFields

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 25, 2019

      Great Product

      Does exactly what it describes amazing product really gives you the sound your looking for. Would highly recommended!

      HighAce

      Year: 2016 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 19, 2019

      Pssssh

      This is one of the best upgrades in EcoBoost and also price is good!

      Madapaka

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 13, 2019

      Psssh!

      Excellent product, well made and perfect fit. Makes the turbo sound you desire without breaking the bank. Vta

      GilbertF

      Year: 2019 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 13, 2019

      Pony man

      Easy install, awesome sound, love it...Makes your Eco come alive,

      George

      Year: 2015 Submodel: GT350

      Helpful (0)

    • 5/5

      March 13, 2019

      Great Product

      Very loud blow off valve sound. Very good quality and easy to install

      Ben

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 3/5

      March 12, 2019

      Dont Use Cruise Control

      1 star - doing what its designed to do 1 star - install 1 star - for price thought I would inform people though about something that I haven't heard mentioned in any video describing this product. if your driving and you are anywhere above 10hg vacuum with your turbo your going to hear a constant hiss out of it, especially if your using cruise control. its not a big deal if your not using cruise control because it doesn't make the pshhhh sound until you let off the gas but I just installed this product yesterday and driving to work (all highway, 45 min drive) at about 60 to 70 mph the hiss was constantly there, more so if I went up hill. I'm new to the mustang mod'ing world and this is the second product I've installed (mbrp catback exhaust). I like having it but I wish I would have known about the constant hiss that it does above 10hg vacuum.

      Taylor

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 11, 2019

      Sweet

      Sounds nice and crisp, and it didnt take long too put on either

      Angelrojo

      Year: 2015 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 11, 2019

      Actually Amazing

      Gives great sound and is easy to install. As long as you have to right tools , it’s a no brainer.

      Yetismasher

      Year: 2017 Submodel: EcoBoost

      Helpful (0)

    • 5/5

      March 06, 2019

      Amazing!

      Absolutely love the sound of the product! I was worried after I received it because I have the ford performance power package with the gt350 air intake which relocated the intake tube. The fitment was very tight but it works very well and provides the desired sound for a low price!

      KodyV

      Year: 2016 Submodel: EcoBoost

      Helpful (0)

    Related Mustang Categories