I helped a friend of mine swap an 89 CRX Si 16v head onto his CX block. Long story short, he got a D16Y8 intake manifold for free and traded it straight-even for the head. Since it was free, he decided to put it on and give it a try. A set of new head bolts, gaskets, a DX ecu, and a few more parts later, it wasn't quite such a good deal anymore. When all was said and done, that little CX had a bit more spunk then before... but my 87 Si can still take it