Yes, as the topic already says, it is about tuning. A question about whether anyone has already tried the following provider or what one could think of it. Up to now I had written to this company 2 times and asked for the guarantee, how it is meant by those, what exactly it includes and what of course not. But no answer came back. The price is almost unbeatable and the installation according to a video is even more correct. The traceability of the tuning should go against “0”, at least one advertises. Furthermore, it is only activated if it is really needed. How this is done now is a puzzle to me, because as soon as I give “gas” I also need performance. www.racechip.de/racechip-chiptuning/Volvo-S40-1-6-D-2313-r.html this would be the link. I drive a Volvo S40 MY05 1.6D.