I have also decided on a Superior XP400, now being built by Aero Sport Power. I called Vans regarding the Vans exhaust (i.e. will it fit?) and they have no knowledge/information, suggesting I contact Superior. Before getting Vans to delete the exhaust from my FWF kit, I'd like to confirm that it will not fit. Can anyone confirm this is the case?
Also, I see the Vetterman Exhaust installation post by TimO, but that appears to be on a 390, so I assume it was done for other reasons.
RV-14A Builder - kit #136
N314KC - First flight Mar 8, 2017, >350 hrs
Sport Pilot (weight-shift control) - Airborne XT912
Dues paid 11/2017