Wow, the bike and the pipes look great!! I'll bet they sound nice too. I picked up a '74 350F a couple of weeks ago and hope that someday it will look as nice. Mine have the 4-2 Macs side exit cutoff look. They sound real throaty and nice, quite a difference from my everyday ride, (at least in the summer) an ST1300 which is really quiet. Keep us posted on your progress. Do you have a before picture?