Black Friday Sale: Save Up To 50%!

Steeda ProFlow Blow Off Valve Adapter EcoBoost Mustang / Fusion (2015-2020)

11 Review(s)
$34.99 (44%)
Steedas ProFlow Blow Off Valve Adapter for 2.3L S550 Mustang or 1.5L / 1.6L / 2.7L CD4 Fusion will give your EcoBoost engine the iconic turbo sound to match its performance. CNC machined in-house out of Aerospace Grade 6061 Billet Aluminum.
Part Number: 555 3215
Write a Review

Suggested Mods


Want to give your EcoBoost engine the sound to match its performance? Steeda's ProFlow Blow Off Valve Adapter will convert your 2.3L S550 Mustang or 1.5L / 1.6L / 2.7L CD4 Fusion's factory re-circulation valve into a blow off valve, giving it the iconic turbo sound! CNC machined in-house out of Aerospace Grade 6061 Billet Aluminum, the ProFlow Blow Off Valve Adapter is an easy bolt-on part that requires no modification or tuning. On high boost applications, this also helps to prevent turbo surge by allowing the pressure to vent to the atmosphere.

Note: Please view the "Fitment & Features" tab to ensure this fits your vehicle. Does not fit 2.0L engines.

Product Benefits:
  • Releases excess boost pressure to the atmosphere
  • Converts the factory re-circulation valve into a blow off valve
  • CNC machined in-house out of Aerospace Grade 6061 Billet Aluminum
  • Bolt-on installation
  • No modification or tuning required

CA Residents: Cancer and Reproductive Harm WARNING

Hi everybody Brian from, here today spotlighting our Blow-Off Valve Adapter for the S550 EcoBoost Mustang as well as the CD4 EcoBoost Fusion. Your car from the factory is equipped with a recirculation valve and the idea behind this valve is, to relieve turbo boost as you're letting out of the throttle. Whether you're letting out of the throttle because of the fact that you're getting ready to shift or because you're modulating, the throttle the turbo is still making a bit of boost. This boost is pushing against the throttle body butterfly that's now closed and we need to relieve that pressure. This is what the recirculation valve does. In comes our Blow-Off Valve Adapter. The idea behind this is instead of having the recirculation valve, recirculate the boost back into the system, it allows it to breathe to atmosphere. A note to those of you watching it may not be for everybody, because of the suspense the atmosphere you do get those turbo sounds. 99% of you love it but for you 1 percenters out there, we just want to make sure you're aware that this will make some noise at any time we let all the throttle or modulate the throttle. You will know you're driving a turbocharged car. We've constructed this Blow Off Valve Adapter of 6061 Aircraft Grade Aluminum and C&C machined it for precision fitment. Now we manufacture this, in the USA in Valdosta Georgia facility. If you have any questions or comments about this or if you’ve installed one yourself, let us know below. If you enjoyed the content of this video please click like and be sure to subscribe to our YouTube Channel. Don't forget to follow us on social media and most importantly have a great day!
View Full Transcript

Fitment & Features


Manufacturer: Steeda Autosports
Made in USA: Yes

Installation Information:

Print Instructions:

Vehicle Fitment:

Fits Model Year: 2015, 2016, 2017, 2018, 2019, 2020

Customer Reviews

Rating Snapshot

Select a row below to filter reviews.


Average Customer Ratings


Outstanding service!!
I ordered this adapter and during the install I dropped the smaller o ring into the engine and was unable to recover it(be careful). I emailed Steeda at 10:00 at night and they responded within 20 minutes and shipped me another one the next day. The blow off adapter sounds great on the car too! Highly recommend!!
Did you find this helpful? 
from Indiana on 10/28/2020
2015 fusion 1.5 ecoboost
Install was super simple it took 5 mins tops. Build quality is perfect and the blow off noise is super loud.
Did you find this helpful? 
from Pikeville, KY on 10/20/2020
b.o.v. adapter
not bad. Does what it says. Ive always loved the sound and wanted it myself. Mine did not line up perfect so that the steeda logo was visible but its no biggie.
Did you find this helpful? 
from CINCINNATI on 9/12/2020
Bad ass
This product is doing what they said it will . Ordering was easy and quick. I would order from steeda again with out a doubt
Did you find this helpful? 
from Coachella on 7/5/2020
This thing is sweet! I always wanted this sound from my car. Also, although the description does not say it, this did fit my 2014 Fusion 1.5L ecoboost.
Did you find this helpful?  5 of 5 Found Helpful
Verified Buyer   from Michigan on 6/2/2020
Easy install took all of 10 mins and the sound is great
Did you find this helpful? 
Verified Buyer   from Michigan on 5/18/2020
Blow off valve
One advice i can tell whoever is in the fence of buying this is it worth it? The answer is YES! My 2013 Fusion sound so good! And i have an advice if you have a 1.6l engine, go buy yourself a wd40 and a flexible drill bit extension because of where the oem blow off valve is located, trust you’re going to need it. You’re welcome ;)
Did you find this helpful?  3 of 3 Found Helpful
Verified Buyer   from Rochester on 4/20/2020
Great buy
Installed in about 30 minutes on my 16 SE 1.5. Tip: install this before the strut tower brace if you can. Quality piece that fits great and sounds great too!
Did you find this helpful?  12 of 13 Found Helpful
Verified Buyer   from Houston on 3/21/2019
This product gave me exactly what I was looking for in terms of sound for my Ecoboost Mustang PP. Very modern, not too obnoxious, and changes the overall driving experience in a positive way. Installation was SUPER simple taking me no longer than 15 minutes. I would HIGHLY recommend this product to anyone looking to add the well deserved turbo sound to their car, AND it's cheaper than others like Boomba!
Did you find this helpful?  20 of 21 Found Helpful
from North Las Vegas on 4/23/2018
Don't buy Boomba. Steeda's version is better.
It's easy to install, took 10 minutes. Steeda's has larger openings than the Boomba version my buddy has, so it's louder. Sounds fantastic. You can even hear it at 2,000 RPM. He's jealous now! A must have for any turbo car. THANKS STEEDA!
Did you find this helpful?  14 of 15 Found Helpful
Verified Buyer   from on 1/23/2018
BOV Insanity
This blow off valve adapter is amazing. Paired with Steeda's performance CAI, it has to be the best sounding/most responsive turbo sound on the market. Requires very little turbo spool and produces a awesome sound. Definitely recommend getting your hands on one of these for your Ecoboost.
Did you find this helpful?  20 of 22 Found Helpful
from on 7/17/2017
There are no reviews for this product!

Related Items

Back to TOP
0 Items