A tuning file service built by tuners, for tuners

A file service is only as good as the engineers behind it. At Shop4Tuner every request is opened as a WinOLS project and calibrated for the exact ECU, hardware and options you specify. We do not resell database files blind.

Our calibration families are developed and verified on our own dyno in Belgium. When we quote a gain, it has been measured on rollers, on a real car, by the same team that answers your support questions.

That is the difference between a partner and a mere file reseller: when a project needs a second iteration, an unusual hardware configuration or an honest “this platform won't take more”, you talk to an engineer who knows your case.