Home / Tunes / Challenger Hellcat Nashville
6.2 Hemi SC · 2015-2023

Challenger Hellcat tune. Nashville.

The 6.2 supercharged Hemi is the platform we tune more than any other. Stock Hellcat → 800+ rear wheel hp on E85 is a well-trodden path. Redeye and Demon variants covered same platform. We unlock, flash, and road-test in-house. PCM unlock included with every Stage 1.

Reserve your slot → (615) 730-8654
Same-day · morning drop-off Safe maps, built to last Refundable up to 48h
Stock
707 hp
Stage 1 typical
800+ 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 hellcat.

Stage 1 includes the PCM unlock (Hellcats lock the OE PCM), the custom map, flashed same-day. We tighten the throttle response, optimize spark across boost zones, and unlock the supercharger's real performance envelope. From there it's pulley + bolt-ons + flex fuel + methanol — each step scoped before you pay.

Pricing for the challenger hellcat.

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 Dodge detect the tune on my Hellcat?

The unlocked PCM stores some events but most aren't reviewed during a typical dealer visit. We offer free stock-revert before planned visits. The PCM unlock itself can't be reversed — that's by design — but we can re-flash factory calibration on top.

Do I need 93 octane or can I run pump 91?

Hellcat tunes require 93 minimum. Stage 2 with pulley + flex-fuel is built for E85 + 93 blend. Cars running stock pulley on 91 see noticeable timing pull.

What's the smaller pulley going to cost me?

Pulley install + tune scope-out runs $1,200–$2,000 depending on which pulley size and supporting mods. We'll quote the full path on the call.

How long does the Hellcat appointment take?

Stage 1 with PCM unlock: 3 hours on the lift. Stage 2 with pulley install: full day.

Book your Challenger Hellcat 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