Originally Posted by Hotrodz

Copy that! Sounds like you might be at the limit of what your Z can do given the tracks you drive on and no suspension upgrades. You need coilovers to help with stability and if you haven't done so remove or detach your rear sway bar and see if that helps.

To perfectly honest, I have spent the money for the rear diffuser to by quality suspension parts. That is where the benefits are at. I built my suspension before before I ever hit the track.

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