Best aftermarket exhaust for BMW M1

I am thinking of installing an aftermarket exhaust on my BMW M1 for a better sound and performance. Which brand or model would you recommend? And how much of a difference can I expect to feel and hear? Thank you.

I highly recommend Akrapovic exhaust for your BMW M1. It offers a perfect balance between performance and sound. You can expect noticeable improvement in throttle response and a deeper, more aggressive exhaust note.

I have tried several brands on my BMW M1 and the best one so far has been the Remus exhaust. It gives a nice growl without being too loud and also adds a small increase in horsepower. Overall, a great option for daily driving.