Houston's HEMI Specialists

HEMI TUNING & BUILDS

Gen3 HEMI engine building and precision tuning. From cam-only builds to 1100hp Hellcat setups.

Unlock Your HEMI's True Potential

Your HEMI is capable of far more than the factory tune allows. Whether you're running a 5.7, 6.4 SRT, or Hellcat platform, proper calibration and the right parts combination transforms power delivery, throttle response, and drivability.

At Raw Exotics, we specialize in Gen3 HEMI builds - from mild cam swaps to all-out 1000+ horsepower monsters. Josh has years of experience building and tuning these engines for reliable street and track performance.

HEMI Platforms We Build

5.7 HEMI

Daily drivers to weekend warriors. Cam packages, intake upgrades, and VVT tuning for smooth power delivery.

6.4 SRT / Scat Pack

The 392 responds aggressively to mods. Big cam combinations, ported heads, and forged bottom ends for serious power.

Hellcat / Redeye

Pulley swaps, E85 conversions, fuel system upgrades, and precision tuning for 800-1100+ horsepower builds.

What Makes Our HEMI Builds Different

Precision VVT cam tuning for proper lope and performance
Accurate spark and knock strategy calibration
Safe AFR control for boosted and cammed setups
Transmission tuning for aggressive shifts
E85 and flex fuel conversions
Complete forged builds for high-power applications

HEMI Tune Estimator

Get an instant estimate for your HEMI tune or build.

Vehicle & Build

Year

Make

Model

Build Type Tune Aggressiveness Gas Saver Fuel Type Optional Add-ons

Burble (+$100) Trans Tune (+$300) Flex Fuel (+$250) Remote (+$400)

Larger Injectors (+$200) PCM Unlock 2015+ (+$300) Bypass Cable 2018+ (+$100) GM TCM Unlock (+$400) Notes

Ready for More Power?

Call (713) 299-1168