Well, I put the Evo X on my DS. It is very impressive. I like it better than Mr. HP's end cap. With the quite core in it is quite as stock. But with it out it is a very aggressive throaty sound. It has increased the mid range. I didn't loose anything on the top end either. Still getting around 77 mph with the GPS ( it is geared down also). The only problem with the pipe is I might have jetting problems when you switch between the quite and race. I have started off with a 175 main. I believe I have a 172.5 that I am going to try. Overall rating is an 8 out of 10.

 

Maineiac,i sent you a P.M.