IA Speed & Supply
Otter Creek, Iowa, United States
Tunes Holley EFI on its own chassis dyno and engine 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 and engine dyno
- Address
- Otter Creek, IA · street not published
- Phone
- 563-686-4201
Other dyno tuners nearby
- Just AutomotiveWilliamsburg, IA · 79 mi · Holley EFI
- Knox County Dyno & TuningGalesburg, IL · 92 mi · Holley EFI
- 14.7 SolutionsPlainfield, IL · 124 mi · Haltech
- URW AutomotiveCrystal Lake, IL · 125 mi · MoTeC
Still choosing an ECU?
Entry units from the brands IA Speed & Supply 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.