I've just ordered a 827-71454 Supertrapp 2-1 for my 95" FXDX. The bike uses 203 cams, a Mikuni HS42 carb (I don't know what jet has been installed) and had used SE slip ons; the bike ran well.

The installation notes suggest that 20 discs will be needed to optimise performance. Can you tell me how many discs the exhaust comes with?

From th einformation I've given, and the assumption that the bike was running OK, will further re-jetting be needed? I'm in the UK and Harley friendly dynos are a rarity.

Thanks in advance