I want the Vance and Hines exhaust for my 1700 classic, but there are two problems. VH doesn't make a fuel pack for that exhaust/bike, and Power Commander doesn't have a map for it either. I would have to dyno map it which is 200+ bucks. Out the door price with air filter also would be around 1500 with parts and labor and custom map. If I do Cobra Slashdowns and the Fi2000r and a filter I'm looking at about 1000 even with parts and labor. I need input on exhaust sound and performance. Is there that big of a difference between the two? Is VH and a custom PC map worth the extra 500+ dollars?