Pops& bangs, car crackles bug?!

Hey everyone!

So couple of weeks earlier i had to experience the problem,that my cars began to stop their ultimate crazy poppin and bangin ( from exhaust) after i buy them and switch to other car. For eg. an RS6 bangs like an AK47 if you speed up around 260+ kmh and then let it roll. Now it only pops once and its done. With several cars.

I don’t know,that you can get my writing, but imma make a video ASAP. Any thoughts? Am i the only one with this prob?

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