J&J Speed Shop
Elma, New York, United States
Tunes Holley EFI on its own Mustang MD-500-SE dyno. Listed by Holley EFI as a dealer, so you can buy the ECU here too.
At a glance
- Tunes
- Holley EFISells too
- Dyno
- Mustang MD-500-SE dyno · 2WD chassis
- Address
- 5960 Seneca Street
Elma, NY 14059 - Phone
- 716-830-0506
- Website
- store.jandjspeedshop.com
Other dyno tuners nearby
- Spooling Up PerformanceBuffalo, NY · 13 mi · Haltech, Holley EFI, Link ECU
- Vanstrom PerformanceNorth Collins, NY · 41 mi · ECUMaster, FuelTech, Haltech, Holley EFI
- NeetronicsOakville, ON · 66 mi · Link ECU
- STM Tuned IncNy 14580, NY · 69 mi · Syvecs
Still choosing an ECU?
Entry units from the brands J&J Speed Shop 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.