Home / Tunes / Mustang GT500 Nashville
Predator 5.2 SC · 2020-2023 · S550

Mustang GT500 tune. Nashville.

The Predator-powered GT500 is one of the most rewarding factory-supercharged platforms to tune. A properly mapped Stage 1 unlocks the safe headroom Ford left behind — pulley + Stage 2 territory is where the platform shows its real ceiling. Anything past Stage 2 is scoped by call.

Reserve your slot → (615) 730-8654
Same-day · morning drop-off Safe maps, built to last Refundable up to 48h
Stock
760 hp
Stage 1 typical
830+ hp
Stage 2 ceiling
900+ hp

Every Carma tune includes.

Real prices, no dyno-number runaround. Here's what comes with every flash — at no extra charge.

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Same-day turnaroundDrop it off in the morning, drive it home tuned by end of day.
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Safe maps, built to lastConservative, OEM-protective calibration — tuned for longevity, not just a peak number.
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Free octane maps — 91 / 93 / E85Whatever you run at the pump, we load the right map for it.
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Free re-flash when you modAdd an intake or bolt-ons later? We update your tune free.
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Back to stock anytime, freeDealer visit or resale — we revert it at no charge.
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Refundable up to 48 hoursPlans change. Cancel up to 48h before drop-off for a full refund.

What we do for the gt500.

Stage 1 sharpens spark mapping, smooths the supercharger's bypass logic, and unlocks an honest 50–80 rear wheel hp on stock pulley + 93 octane. Smaller pulley + heat exchanger + 93/E85 flex puts mid-900s in reach. We tune from low boost to race-fuel meth-injected builds — every step scoped before you pay.

Pricing for the mustang gt500.

Stage 1
Safe map · pump gas
$999
Safe pump-gas map. Same-day flash — drop off in the morning, drive it home tuned.
Stage 2
Bolt-ons + supporting mods
By call · scoped
Every Stage 2 scoped by call. Mods + fuel + dyno time priced together.
Custom
Built motor / race fuel
$1499+
Mapped from scratch on our dyno. E85, methanol, big SC, built block.
Don't feel it? We'll flash it back — free.

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 the dealer detect the GT500 tune?

Ford logs tune events on the Predator platform. We offer free stock-revert before any planned dealer visit. If you've changed pulleys, the supercharger hub is the giveaway — not the tune itself.

Do I need a smaller pulley to make real power?

Stage 1 on stock pulley picks up 50–80 wheel hp. To get past 850 wheel hp you'll want a smaller blower pulley + supporting mods. We'll scope the full path on the call.

Is the dual-clutch (DCT) at risk with more power?

GT500 DCT handles 800 wheel hp without issue when tuned correctly. Above that we recommend a TCM tune in addition to the ECU. We map both in-house.

How long does the GT500 appointment take?

Stage 1: 3 hours. Stage 2 with pulley install: full day. Built-motor / methanol / E85 conversion: multi-day project, scoped ahead.

Book your Mustang GT500 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.

Reserve your slot → (615) 730-8654