Mustang GT tune. Nashville.
Safe, same-day ECU tunes for the Coyote 5.0 — S550 (2015–2023), Dark Horse (2024+), and Bullitt variants. Real prices on the page, real gains you can feel. Drop it off in the morning, drive it home tuned the same day.
Every Carma tune includes.
Real prices, no dyno-number runaround. Here's what comes with every flash — at no extra charge.
What we do for the gt.
The Coyote responds well to a properly mapped Stage 1 even on stock bolt-ons. We tighten the throttle map, smooth boost on the supercharged variants, and pull every ounce of safe timing the platform allows on pump gas. Stage 2 territory is where it gets interesting — long-tubes, off-road mid-pipe, cold air intake, and a properly mapped flex-fuel setup makes the Coyote sing.
- Factory file pulled and archived (free stock-revert anytime)
- Custom-mapped for your exact mod combination
- Safe map flashed and road-tested in-house
- 91 / 93 / E85 maps loaded — whatever you run at the pump
- Lifetime support on revisions for ongoing mod changes
Pricing for the mustang gt.
No dyno-number games, no hard sell. Drive it, and if the tune isn't for you, we revert to stock at no charge. That's how confident we are in the map.
Common questions.
Will tuning my Mustang GT void the factory warranty?
Federal law (Magnuson-Moss Warranty Act) makes the dealer prove the modification caused the failure before denying a claim. Powertrain warranty is the risk surface — body, electrical, suspension unaffected. Ford specifically has a tune-flag the dealer can read; we offer free stock-revert before any planned dealer visit.
How much horsepower will I gain?
Stage 1 on a stock GT typically picks up 20–25 wheel hp + noticeable throttle response gain on 93 octane. Stage 2 with long-tubes + intake + intercooler is 70–110 wheel hp depending on weather and your supporting mods.
Do I need to bring 93 octane fuel?
Yes. Drive in on at least a half tank of 93 octane. We pull timing automatically if the ECU detects knock from lower octane, which costs you the power you paid for.
How long does the appointment take?
Stage 1 is a same-day flash — drop it off in the morning, drive it home tuned. Stage 2 and custom builds take longer; we'll give you a real timeline when we scope it.
Book your Mustang GT tune.
Drop it off in the morning, drive it home tuned by end of day. 1035 3rd Ave S, Nashville, TN 37210 · Mon–Fri 8 to 5.