WRONG!! I had it on my F23A4 for a couple of years without ANY problems. APEXi may not have the exact wiring diagram on their website but it DOES work with our motors. Seeing as you're in NJ, go to IMP (www.imp-auto.com) in Clifton and they'll have it installed in less than 40 minutes. Then go to Kazteck in Hackensack to have it dyno tuned.papajazz said:Now tell me if anyone has ever heard this, I've got f23a4, and went to get my APEXi VAFC (vtec controller) and apparently this is the only motor that it will not go with, am i out of luck, or is someone wrong???