Getting ready to mount my DA 50 in a new air frame and am going back to the stock DA muffler. My question is: the outlet on this muffler needs to be shortened to help taking the cowl off and on. Should I cut the exhaust pipe on the same angle as the cowl or straight across? How much will shortening this pipe affect the noise level. I will be taking a little over an inch off of it.
Thanks in advance.