Gwatney Performance Innovation
Jacksonville, Arkansas, United States
Tunes Holley EFI on its own chassis dyno. Listed by Holley EFI as a dealer, so you can buy the ECU here too.
At a glance
- Tunes
- Holley EFISells too
- Dyno
- Chassis dyno · Chassis (any)
- Address
- 200 Municipal Dr
Jacksonville, AR - Phone
- 888-388-3351
- Website
- gwatneyperformance.com
Most watched on their YouTube
Fresh Tune · 32,741 views · Watch on YouTube ↗
Other dyno tuners nearby
- Jerry's PerformanceMagazine, AR · 97 mi · Holley EFI
- Earth Motors / Rhino's Truck AccessoriesPoplar Bluff, MO · 163 mi · Holley EFI
- SOUTHERN SPEED LLCTupelo, MS · 196 mi · Holley EFI
- The HorsePower FactoryFinger, TN · 200 mi · Holley EFI
Still choosing an ECU?
Entry units from the brands Gwatney Performance Innovation tunes:
- Holley Terminator Xfrom US$1,600
- Holley Terminator X Maxfrom US$2,000
How this listing was checked
Report a mistake on this page. Listed because there's evidence it tunes aftermarket ECUs and has its own dyno. "Sells too" means the ECU maker lists it as a dealer. Checked October 2026. Listings are free and shops can't pay for placement.