RPM extender

On a stock engine , it wont do anything because you quit making power long before you hit the rev limiter.

NO mods in your sig, so there is no way of knowing.

That's why it is a good idea to use the sig under the user control panel (User CP) option. It allows you to post your car year & mods, which help greatly when troubleshooting things. No, it is not there for us to snoop and see any "Secrets" you have hidden away under the hood. Be a good stangnetter and update you sig for future reference & don't keep us guessing.
 
yeap like intenseblue said 306 with afr 185's typhoon ported,70mm TB, comp cams XE274hr, T5, 3.73 gears...

will the RPM extender help my computer limits on 7000 i dont know why but i whant to know about performance......