Hey first of all congrats with your car with Eisenmann Auspuffanlage
You've said that you have the "Racing" system but with middamping section or with the soundtube ( without secondary damping )?
Thx
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"... on the smiles-per-mile charts, the 1-series M coupe can't be beat. It is a challenging piece, a triple-X-rated driver's machine for semi-professionals. Its handling balance provides an open invitation to indulge in latent oversteer, and provides an opportunity to separate the men from the boys. It is an absolute hoot on the track and an addictive plaything on your favorite twisty back road. "