VL Performance
Appleton, Wisconsin, United States
Dyno: Dyno on site (model not published)
8 shops in Wisconsin have their own dyno and tune aftermarket engine control units (ECUs). Most tuned here: Haltech (4), Link ECU (3), Holley EFI (3), AEM (2).
Appleton, Wisconsin, United States
Dyno: Dyno on site (model not published)
Fond du Lac, Wisconsin, United States
Dyno: Dyno on site (model not published)
Fredonia, Wisconsin, United States
Dyno: Mustang MD-AWD-150-SE-BG-EXT chassis dyno
Green Bay, Wisconsin, United States
Dyno: Dynojet 424xLC chassis dyno
Markesan, Wisconsin, United States
Dyno: Engine dyno (dyno testing service)
New Berlin, Wisconsin, United States
Dyno: Dynojet (dyno break-in and tuning)
West Bend, Wisconsin, United States
Dyno: Mustang MD-500 chassis dyno
Wisconsin Rapids, Wisconsin, United States
Dyno: Dyno on site (model not published)
These shops are on an ECU maker's dealer list, but there's no evidence yet that they have their own dyno. Call ahead before you book a tune.
Checked October 2026. All dyno tuners · United Kingdom · Australia · Canada · New Zealand · Germany · France · Switzerland · Sweden