are all obd1 intake manifolds the same? or are m3's differant than 325's?
which tb would u suggest with an obd1 intake manifold?
and would you guys suggest the 3.5" hfm and 3.5" intake, or stock hfm and 3" intake for stock block, stock exhaust, 328is with 95 intake mani, m3 cams and intake?
which for of engine management?