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BMW 4 Series Gran Coupe tuning solutions

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4 Series Gran Coupe variants

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The TDI Tuning blog

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TDI Tuning App

Smartphone displaying the TDI Tuning app, shown with TDI Tuning CRTD4 tuning box

More power or more economy? With the TDI Tuning App you can decide directly from your driver’s seat. Instantly change the performance of your engine and adapt your vehicle to suit any situation.

Download the app from the App Store or Google Play Store:

App Store
Google Play Store