ys 45 muffler
I just bolted on a Jett engineering turbo in cowl muffler on my ys 45 side exaust. Wow !!!!!! It performs as good if not better than a full length tuned pipe and manifold. It is light and small and really kicks. I was turning an apc 11X7 at 13000. Great engine, excellent muffler. Go to Jettengineering.com for more info. MAD