Stock is almost 6k, I don't remember the exact number.. If you've got a B16, keep it. If you want to change the vtec rpm, get the ECU chipped. The ECU switches to a seperate set of fuel and ignition maps when vtec engages, so if you use a vtec controller to change the vtec rpm (lower), the ECU will be on the wrong set of maps when vtec engages. So if you have your heart set on using a vtec controller, make sure you also add fuel when you engage vtec or you'll have a lean condition when vtec engages. Just a warning.