Quote Originally Posted by bzbaeren View Post
Just came back from a quick 50 mile run after installing the Pitbull bypass more power noticed and quicker acceleration response and ran cooler next month JD air filter.
I installed the part from Lamont and an Akrapovic muffler. There was a palpable increase in low end performance. The engine adapts to the reduced back pressure automatically. In addition to the increased performance and better sound, I am pleased that the extremely hot removed part is no longer cooking away at my Spyder. I would advise anyone who makes such a modification to save the parts for the next owner.

I had similar modifications made to my Vespa. The result is not as obvious but the fear that an Akrapovic equipped Vespa inspires in the pirate population is noteworthy.