Sleeper Tuning
Newark, Delaware, United States
Tunes AEM, ECUMaster, Emtron, Haltech and Link ECU on its own dyno. Listed by Link ECU as a dealer, so you can buy the ECU here too.
At a glance
- Tunes
- Dyno
- Dyno on site (model not published)
- Address
- 30 Albe Dr, unit C
Newark, DE 19702 - Phone
- 302-553-3122
- Website
- sleepertuning.com
Most watched on their YouTube
Apparently stock Q45 axles will not hold #rb25detneo #rb25 #s13 #240sx #dragstrip #snappingaxle · 38,770 views · Watch on YouTube ↗
Other dyno tuners nearby
- J Tune PerformanceNewark, DE · 1 mi · Haltech, Link ECU
- Race Proven MotorsportsNew Castle, DE · 17 mi · Holley EFI
- First State MotorsportsClaymont, DE · 18 mi · ECUMaster, Haltech
- Innovative Motorcycle ResearchSalem, NJ · 20 mi · Emtron
Still choosing an ECU?
Entry units from the brands Sleeper Tuning tunes:
- ECUMaster EMU CLASSICfrom US$999
- ECUMaster EMU BLACKfrom US$1,299
- Emtron Shadow 8from US$1,415
- Emtron SL4from US$1,700
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.