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  1. Need some advice from S650 owners running a Borla S-Type

    Hmm that happens to be the exact RPM range of the loudest drone on various exhaust systems in Mustang GTs, probably a result of the engine hitting just the right resonance at that RPM or something. So it might be normal to some degree, but if it's causing significant vibration that bothers...
  2. Strange noise when hitting brake.

    If you're talking about the "whoosh" noise, that's normal
  3. Ford Quality: from Nightmare to Dream Come True

    Dang... but yeah that's exactly what I was talking about in my earlier post in this thread about seeing late '25s and '26s with bumper corner paint issues. I've checked out a lot of Mustangs on random dealer lots from California to Virginia and noticed this type of thing on many of the '26s...
  4. 2025 Ecoboost electrical gremlins

    Sounds like your car might have actual electrical issues, since you're having random issues across multiple systems in the car. Sofa King is right that BCM water leaks could cause stuff like that, so you might want to manually inspect your BCM yourself to make sure it's not corroded (it's in the...
  5. Ford Quality: from Nightmare to Dream Come True

    I've owned a '24 Eco, '25 GT, '25 Eco, and now '26 GT. To be honest I've found the quality to not have gotten much better. My '25 Eco and '26 GT both have door defogger area rattles that weren't on my '24 Eco and '25 GT. My '26 GT passenger rear brake is funky, pad clunk and creaks, I'll have...
  6. Front Hood Alignment

    You could turn the driver side rubber stopper out a little more (make it slightly longer). But if it's not fluttering you're fine. The fit and finish on these Mustangs is honestly horrible (I've bought 4 brand new S650s so far, each one had various small-to-moderate quality issues). That is to...
  7. Purchased a knock off AC hood vent and pleasantly surprised

    Noticed this item on the market recently as well. The design definitely looks great. Let us know how it holds up, like I wonder how the paint finish will handle UV and age over time.
  8. S650 Brake Noise Inside Car

    Thanks for sharing. Yes this is a known common brake booster clicking issue, most often on 2024s from what I've seen on forums/Reddit. I saw other Ford vehicle owners post about it too, so it may have been a supplier issue across the board for a while. I believe Ford was attempting to claim...
  9. Door card rattle - FIXED

    I have very annoying door rattles on both doors seemingly near the driver defogger vent/upper door speaker area. Driver side is really bad. I will have to take it apart and take a look. Tried pressing hard on everything from speaker area to A/C vents to A-pillar trim, even tried pushing on the...
  10. Matte Striping and Ceramic Window Tint

    I'm also a fan of small subtle exteriors mods, even some of the factory builds feel too "ricey" to me. When I look at the design language of S650, I believe Ford aimed for low-poly, simple shapes, retro-futurism like an updated 80s boxy style. I see this trend across the car industry from...
  11. Cool Daily Random S650 Mustang Pics -- Post Yours! 📸

    Base GT with a couple mild exterior touches, I like things simple and minimalist
  12. Convertible top button peeling

    >$100 for a little plastic switch, I'd just repaint/recoat your existing switch with a tougher material (bedliner? lol)
  13. Base GT brake job - DIY tips & info

    Anyone done brakes (pads +/- rotors) on the base GT brakes? Hoping to gather info (like official torque specs) since it's a regular maintenance item, but there aren't any Youtube tutorials with detailed info yet. I partially disassembled my brakes to paint the calipers, and here are some things...
  14. My Car Feels Slow...

    I'm guessing this: Urban Dictionary: xin loy
  15. What did you do to your S650 Mustang today?? 🙋🏻‍♂️

    Did you remove the rear bumper, or were you able to just replace the rear valance? And how does it sound? I heard the Ford Touring is quieter than stock
  16. Water Visible Inside on Black Mustang Passenger Door Sill

    I believe all S650s collect water there like after carwashes etc
  17. Antifreeze Smell

    Seems to be a common thing that coolant slowly disappears on these S650s. I've personally experienced this on both S650 Ecoboosts and GTs that I've owned. Because it was across different engines (and different model years), I think it's most likely some defect in the design of the shared coolant...
  18. Welcome to Extreme Online Store — S650 Mustang Parts & Accessories

    My product suggestions: 1) a GTD/DH SC style duckbill https://cdn.motor1.com/images/mgl/AknJ0W/s1/2026-ford-mustang-dark-horse-sc-track-pack.jpg 2) a relatively minimally-designed lip that snaps in like the OEM ones. Should be "low-poly" in design to match the S650 gen design language. MP...
  19. Active exhaust compared to standard on 5.0?

    What did you think of C8 vs Mustang? Does C8 feel a lot faster?
  20. PlastiDip - Heat Extractor Mod

    I like the matte look. But I wonder how durable it will be to bugs, car washes, etc.





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