Recommended Mods + Tune

[Mels21GT]

I am about to hit 2 months with my new 21 PP GT with 10 speed transmission, magneride, active exhaust. As many of you, I am already wanting more power from this car and hope the Mustang6G community can help recommend some boltons/tune.

I am looking into getting some headers, x-pipe and or h-pipe, 91/e85 tune, ported intake manifold (maybe), performance drop in filter, 1" lowering springs all around. I'm not sure if an aftermarket throttle body will yield much results, although if anyone highly recommends I wouldn't be opposed to getting one.

Are there any tunes that I can easily reset back to factory settings for warranty sake, incase I ever need to take the car to the dealer? Also, coming from an 18 Ecoboost with PP, I know the aftermarket CAI intake box was not really needed. Is this the case for the GT as well, just a performance drop in filter will do?

Thanks in advance for the help/recommendations!

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[junits15]

Definitely do e85, I don’t have recommendations for specific tuners but e85 is the move on this car.

 

[Finally21]

Wengerd Tuning, can’t go wrong with him.

 

[RoGCobraRV]

If you wanna keep your warranty,look into the ford performance power pack tune. Otherwise once you tune it with an aftermarket tune your warranty can be voided if they claim the tune caused the failure.

 

[ice445]

You can't really "reset" after tuning anymore like the old days, there's a key cycle counter they look at that will out you even if you flash back to stock. The only warranty safe option is the FP power pack, but that has its own issues.

Intake wise the stock one is excellent, a drop in filter is plenty.

 

[tdstuart]

Try to decide if you want to go boost or not.

If you want to go boost just start saving. Especially if you only want moderate power (650whp ish).

If you want N/A go E85, headers, ported 2018 or gt350 manifold (cobra jet or holley if you can afford it), drop-in filter or a pmas fender well intake.

If you want to go all out N/A then definitely get a holley or cobra jet manifold, get cams, port heads, etc...

It's much easier and cheaper to make power with boost. You can spend a little more on a base ESS kit and make a lot more power than bolt-on N/A.

If you want high power boost levels then do exhaust and headers (if not turbo) (preferably catless).

 

[stannypack]

If there's one thing I've learned from my research, skip all the na stuff and save for boost (there's multiple carb legal options for the 21). Also you won't pass smog with headers in cali

 

[tdstuart]

If there's one thing I've learned from my research, skip all the na stuff and save for boost (there's multiple carb legal options for the 21). Also you won't pass smog with headers in cali

Pretty much.

If you are going to go with a supercharger then it may be worth it to do headers, especially catless ones.

An E85 tune would also make sense and it shouldn't cost that much to get retuned on the boost setup.

 

[ice445]

Yeah, seems like NA modding is really only worth it if you have e85 in your area.

 

[Mels21GT]

I had the Cobb Accessport on my 18 ecoboost and had no issues at the dealer after the car spent almost a week there due to a restraint fault indicator and a chewed battery wires. I just flashed the stock tune it had saved. Although I may have gotten lucky??
As for boost, I’m fine with NA as I don’t hit drag strips or tracks. I’m in Los Angeles so e85 isn’t much of hassle to get.

 

[Mels21GT]

You can't really "reset" after tuning anymore like the old days, there's a key cycle counter they look at that will out you even if you flash back to stock. The only warranty safe option is the FP power pack, but that has its own issues.

Intake wise the stock one is excellent, a drop in filter is plenty.

What kind of issues does the FP power pack have?

 

[tdstuart]

I had the Cobb Accessport on my 18 ecoboost and had no issues at the dealer after the car spent almost a week there due to a restraint fault indicator and a chewed battery wires. I just flashed the stock tune it had saved. Although I may have gotten lucky??
As for boost, I’m fine with NA as I don’t hit drag strips or tracks. I’m in Los Angeles so e85 isn’t much of hassle to get.

I can ask the techs at my dealership but unless it’s engine warranty repair stuff I doubt they care about the tune.

Every time you flash a tune it is logged by the ecu and ford can tell if they want, flashing it to stock doesn’t do anything.

 

[ice445]

What kind of issues does the FP power pack have?

Mostly fitment, although it's workable. Biggest issue is that if you have an auto car, most of the gains are in an area the auto rarely uses, so it's hard to notice.

 

[ice445]

I can ask the techs at my dealership but unless it’s engine warranty repair stuff I doubt they care about the tune.

Every time you flash a tune it is logged by the ecu and ford can tell if they want, flashing it to stock doesn’t do anything.

I don't think that applies on the mustang yet, it just resets the key cycle counter. I'm sure other ford models have an actual flash counter by now though. Flashing also leaves stored codes you need an advanced scanner with ms can to scrub, so they can also tell with that if you don't clear them.

 

[Mels21GT]

Mostly fitment, although it's workable. Biggest issue is that if you have an auto car, most of the gains are in an area the auto rarely uses, so it's hard to notice.

Good to know, thanks ICE. Looks like I'll be staying away from the FP Tune.

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