this...

http://www.omextechnology.co.uk/Revlimiters/revlimiters.htm

i have a 1.6 zetec se... can i add this and up the rev limit to 7.5-8K???

that seems to simple and too good to be true, the ecu won't fuel to that if the ecu is onlt set to go to 6750... or will it???

i know nothing can someone with some knowledge set me straight please

They are rev limiters that will stop your engine over revving. They won't raise the revs your engine will rev to.

David

that sucks, thanks for the info

You'd need some kind of aftermarket ECU to up the rev limit.. And possibly some valve mods, but I don't know this engine too well.