4stroke expansion chamber

  1. Drumbum12191

    Expansion chamber on 4 stroke?

    Since my 2 stroke seized up on me I have got my hands on a new 4 stroke and it's great! The thing I don't care for is it's weak sound, especially compared to my friends' 4 strokes that have 2 stroke stock exausts which really make them ROAR! So I was wondering if I could take my old expansion...