Really what matters posted by Stadsport (PHX) on December 22, 2009 at 06:20 PM
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The 90-93's have old style injectors, old style cas, and PTU that uses a subharness. 94 has old style injectors, new style CAS, no subharness needed for PTU. 95-96 have new style injectors, new style cas, and no subharness for PTU. 90-93 JDM usually come with the alumunum PTU. 90-94 used cylinder heads cast P30. 95-96 heads cast P48.