I need a factory one, as the one I have all the bolts to exhaust pipe and stove pipe snapped off and I haven't been able to find one.

have you looked in any junkyards? www.summitracing.com carries the stock ones.

I have searched the jky around here, and haven't found one, summit sells the lh and not he rh.

just weld the old one back up.

driver's side or passenger side? S10 exhaust manifolds work without modification. but they don't have the same emissions, so you'll have to do away with egr and AIR (oh darn, and they were such fun). thats what I did.

I have a pair from an 88 2.8 firebird, 54K original miles, good condition.