I like a little louder, Its safer if traffic and pedestrians know your there. Your bike is louder now that you got rid of that junk air box and white resonator tube anyway
2stroke engines need expansion chamber to make any kind of power so get any one that has a chamber, I like estoril best but mounting on maxi the pedal and shaft are in the way and you have to bend them, circuit is easiest but it is loud, it’s nothin like a Harley though