Ram TRX tune. Nashville.
The TRX shares the supercharged 6.2 Hemi with the Hellcat family. PCM unlock + Stage 1 map gets you 800+ rear wheel hp on stock pulley. Tow-rated, off-road-rated, drag-strip-rated. We've tuned TRX customers doing all three.
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 trx.
Stage 1 includes the PCM unlock, custom map, flashed same-day. The TRX shares the Hellcat playbook — pulley + bolt-ons + flex-fuel + methanol territory unlocks the platform's real ceiling. We've mapped TRX builds doing 1000+ wheel hp with the right supporting mods.
- PCM unlock included (one-time, persists for life of the vehicle)
- Custom-mapped for your exact pulley / mod combination
- Safe map flashed and road-tested in-house
- E85 / flex-fuel mapping standard on Stage 2 builds
- Lifetime support on revisions
Pricing for the ram trx.
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 hurt my tow rating?
The tune itself doesn't affect tow rating. We can map a separate tow-friendly fuel/timing profile alongside the performance one if you want both.
How does the TRX tune differ from a Trackhawk?
Same engine + PCM family. Calibration is different per vehicle (transmission programming, fuel maps, axle ratios) but the playbook is identical.
Does the 8HP95 transmission handle more power?
Yes — handles 800+ wheel hp without issue. Past 1000 wheel hp you may want a TCM tune in addition.
How long does the TRX appointment take?
Stage 1 with PCM unlock: 3 hours. Stage 2 with pulley install: full day.
Book your Ram TRX 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.