I am only adding slip-ons say like straightshots HS by V&H or etc. Which set, or who makes the best (loudest w/o sacrificing performance) set of slip-ons. I didnt see any direct fit Rhinehart for the 2007 Streetbob available yet. Have used them in the past on a softail. Will be using my TFI and K&N along with the slip-ons. I like slips b/c they tend to give great performance for what you have to spend. They run around 250 or so and one could easily spend 500 to 1000 on a complete pipe set. I will be adding cams later and may, just may go up to the original screamin eagle size of 103 cu.in. The 96 is fine with me, I have had my days of crotch rockets. Thanks for any advise on loud slip-ons (deep, and vibrates windows).