When I bought my bike I couldn't imagine for the life of me why anyone would do anything in regards to increasing performance. Then I got comfortable on it. Now I've done a few things that have made it feel sick fast (as if it wasn't before)....and one of those things was a pipe. I'm sooo glad I put a pipe on it. It sounds so much better.
BTW, what constitutes "warm enough to ride"? For me it's about 40 degrees.
