I have a question about my gsr's vtec engagement. I know that on a stock standard gsr, the vtec engages at around 4400 rpm. My car however, has a chipped P28 ecu to which the vtec doesn't engage until around 5800 rpm or so. My question is this: Is there any benefit to having the vtec engage at a higher rpm? I mean, whether it engages at 4400 or 5800 rpm, it still stays engaged to redline so what would be the benefit of the higher engagement point? The car had this ecu when I bought it so I'm not the one that set it up this way. Anyway, if someone could give me a reasonable explanation I would really appreciate it.