TTI's are well made and if you tell them you have Ed heads at time of order they will make any adjustments needed for plug clearance. I think long tubes would work best... if they fit. Worth asking TTI IMO to get their advice.

To control heat while cruising, ceramic coating inside and out for the long tubes.

If fit is no good or not sure, then the shorties. For what little you would lose with shorties they may make sense so you do not have to worry about fit. Also possibly less heat.