View Full Version : Kerker Slip-Ons/Mikuni core

07 Ultra
03-17-2008, 09:16 PM
I have a stock 07 FLHTCUI and want to purchase Kerker Slip-Ons/Mikuni core (128-78045). I want to know the best modifications that would optimize this exhaust (air cleaner kit/stage 1 etc...). Can I install this exhaust without doing any further mods without any problems such as a lean condition?

03-18-2008, 12:23 PM
The Mikuni cores are very free flowing. I would suggest having them installed by a tuner that is familiar with them. A good source of info would be Joe Minton, the designer of the baffle.