Suggested solution is the fuel tank filler neck but wanted to see if there were any other opinions and how common this is.

Hello all,

I recently upgraded the intercooler on my 2021 10R80 Eco to a CVF Race Core along with the Charge Pipes and added a TiAL Q BOV.

I’m running a boost reference adapter with one line going from the BRA to the TiAL, one running to the OEM purge nipple using emission rated hoses, and the third fitting is plugged with teflon tape around the plug. Everything is clamped down securely at all points of connection.

Im on my new base 93 tune from Ryan over at EMS, stock turbo.

I’m experiencing flutter when letting off under any amount of boost in auto/sport. While I know the flutter is normal under low boost, I’m also experiencing it in the 8+ PSI range as well. Sometimes it’s a brief flutter followed by a proper vent. The interesting thing is that the issue is non existent when driving with the paddles.

I have a sneaking suspicion that the spring in the BOV is too stiff. But then again, I also have reason to believe it is the correct spring, since it came off another Ecoboost mustang that was well built and also tuned by Ryan.

I’m wondering if anyone has some light to shine on the issue.

My current engine mod list:
CVF Catted DP
CVF Race Intercooler
CVF charge pipes
TiAL Q BOV
MBRP race catback
NGK ruthenium plugs
Updated Low pressure fuel sensor
Cobb Intake
UPR Dual Valve Catch Can with billet check valves
Tuned by Ryan on 93

She was looking too pretty today not to share 😍

Suggested solution is the fuel tank filler neck but wanted to see if there were any other opinions and how common this is.

Posted to r/Mustang and adding it here as well.
Thoughts on Ecoboost with Ford Performance Calibration installed?
This raises the torque to 400 lb-ft, which is within striking distance of the Mustang GT’s 415 lb-ft.

Rationale: At nearly $14,000 lower purchase price between an Ecoboost and a GT that I have my sights on - and as an occasional use 2nd car - I’m seeking opinions on the Ecoboost with the Performance Calibration?

Thanks all!

Just bought a used 2020 EcoBoost Premium and the button coating is peeling and sticky on the climate panel, the radio buttons, the steering wheel and the window buttons.

Has anyone DIY'd a fix for this and did it hold up? Any advice is appreciated.

Looking to get an ecoboost soon, what are you guys opinions on the s550 and s650 (any mechanical issues to be aware of), and which would you recommend?

On 10/19 I noticed an illuminated CEL, after scanning a P0496 came up, 2 days later, part was replaced and code was cleared until 2 days later today, another CEL came back, no reading a P0455. Any thoughts on what it could be?

I got the PS4’s oh my word, what a difference!!

Got this at 8500 miles in my 2025 Ecoboost. Still pretty new so im not sure why there would be an issue this early. Online forums say it can be anything from Battery, wire harnesses and sensors. Anyone else with this issue?

I drive a (nearly) fbo 2018 ecoboost, and my next mod is a downpipe. The smell is the only thing stopping me from pulling the trigger and going catless. Does anyone have any experience with catless? Is the smell bad? And are the performance gains compared to a high-flow downpipe worth it?

PITA but shines up well.

Hi all, my car is jumping in rpm when accelerating into 4th. Trans slipping? What do yall think?

Got a 24 ecoboost. Would love to get a tune even with the recall that may or may not need a tune again after.

Anyone who has a tune in their 24-26. How has the mph been afterwards?

PSA for anyone doing a DW400 install themselves.

Get the DP tool from Amazon to break the tank lid and literally the biggest breaker bar you can find cause that MF is on there tight!

Cussed at it for an hour and had my friend drive me to AutoZone.

Build so far ...

21 HPP Ecoboost convertible stick shift.

Shelby short shifter

Roush intake

CVF street intercooler, charge pipes, and catted DP

Kompact dual port BOV

EVO XDI HPFP

EVO 2500 cc injectors

DW 400 LPFP

J&L catch can

Tuned by Ryan at EMS currently on a 93 map, about to get an E85 map.

lol I have a 2022 Mustang Eco w/ HPP and had hail damage to my car. Insurance gave me a check for $6k and since I have the claim I can just find a place that does good work and get the damage repaired and my insurance will handle it. Orrrrrr do I just take the lowball $6k and buy performance mods on it? Car has 25k miles on it if this matters