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Mustang chief engineer Ed Krenz recently said in an interview that the 7th gen Mustang will be more difficult to tune compared to previous generations.

He says that's due to the Mustang's Fully-Networked Vehicle (FNV) electrical architecture that enables OTA updates and other features.

It'll be interesting to see if anyone can crack the ECU and/or piggyback it. I know it's been a challenge for people with the C8 Corvette as well to tune it.


For many enthusiasts, part of the Ford Mustang's appeal is the tremendous amount of aftermarket support that the model benefits from. While third-party companies will sooner or later get their hands on the seventh-generation model, the scope of modifications that can be performed to the four- or the eight-cylinder engine will be reduced because Ford has made the car's ECU more difficult to tune.

Ed Krenz, the Mustang's chief engineer, told Ford Authority that the new model unveiled in September 2022 will be "much more difficult" to tune than its predecessors. He explained that's due to the Fully-Networked Vehicle (FNV) electrical architecture that the Mustang is built around. This system enables over-the-air software updates, among other features, but it also complicates the task of tuning the ECU.

Krenz noted that the Mustang's electrical system is encrypted, and it's programmed to shut down if it detects what's referred to as a "break." If that happens, it either turns off entirely or disables certain components or functions. That's bad news for both hackers and tuners.

That doesn't mean that Mustang owners will be stuck with the stock output. Ford Authority added that the Blue Oval is open to the idea of letting trusted tuning companies dial in more power. None were identified by name, but Shelby is one of the firms that comes to mind. And, owners who want more horsepower and torque may be able to get both directly from the source when the time comes. For example, Ford Performance just announced a calibration kit that increases the 2.3-liter-powered Bronco's output by around 30 horsepower and 60 pound-feet of torque when burning premium fuel.

Ford isn't an exception to the rule; tuning the eighth-generation Chevrolet Corvette is equally difficult due to ECU-related constraints.
 

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Discussion Starter · #3 ·
Our hobby is being compromised by the manufacturer. Thankfully we have the older cars to fall back on.


Sent from somewhere in the twilight zone…
I agree, but sooner or later (if there’s a demand), someone will defeat the encryption and tuning issue.

So far Shelby, Roush, and FRPP will be given a key to decrypt and be allowed to tune.
 

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Discussion Starter · #5 ·
Regarding Tuning, apparently Whipple can tune it for their equipment and remain 50 State legal. Obviously it’s not totally blocked. Authorized (trusted) vendors are given official access, so hacking & piggybacking won’t be needed (as it is with bowtie). I think that little Johnny’s Dyno-Tunes will have a problem, but some partners will be taken into the fold with Ford’s blessing. At least that’s how it looks right now. Time will tell.

Excerpt:
Let the performance upgrades for the 7th Gen Mustang begin! If you're looking to get a GT or a Dark Horse you might want to take a look at this Whipple Supercharger that'll be coming soon!

New Gen 6 3.0L for the new S650 2024 Mustang GT and Dark Horse!

Here’s what we know so far:

  • All New, High-Efficiency 120mm Rotors,
  • All new Bearing Plate
  • Changes to Housing
  • Dual Air Boxes & Dual Filters mated to a single Throttle Body
  • Stage 1 Kit uses a 92mm Throttle Body
  • Stage 2 Kit uses a 112mm Throttle Body
  • 50 State Legal Calibration!
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