Quick question about front bag cups..

I'm bagging an 03 f-150, with spindles, re-5 slams up front, I'm building the front bag cups, and my question is how tall should I make the upper bag cups? any help is appreciated, thanks in advance.

-Chris

Call KP components and ask them how tall theirs are. than cut em down bout a half inch. just buy them for like 90 bucks and cut a 1/2" - 3/4" off of them. and you may wanna use RE6's up front.