I am looking into getting drag pipes w/ mufflers and a port job over the winter..I haven't seen too many drag pipes with mufflers..but trinity seems to have the cheapest that I have found..are they decent and how do they compare to the others..and as for the port work..who does a good job and how much is it for a good drag port? Also I have read a few posts on the cheetah cylinders..I might be interested in getting those with a port job if I can afford it..Any suggestions are welcome..thanks in advance