you are asking for magic.
little happens on any machines, all machines need TLC, or they will fail at the wrong moment.
80mph is way to fast for 2000 lb. 1.6l, top heavy brick. you are kidding right.?
IMHO.
you need a wide track wrangler for speed like that. and 4.0L of push.
doormne makes a neew intake for $99 clams.
the suz pn for stud is, 01411-10253.
did a google search on that and its 10mm diameter.
pitch, ?
the iso std. is 1.5 course, and 1.25 and1.0 for fine.
by 2 nuts , try both.
PS Oriellys store has Dorman rack with exact size for suk , manifold. get the 10mm pack.
and
rockauto
DORMAN Exhaust : Exhaust Manifold Stud and Nut Auto Parts
bolsal pn. 258943
any auto store worth salt can find it or cross it.
IMHO
