This is a technique that may help you tune the car. This is the instructions on how to properly skidpad a car. Find a large empty flat level parking lot. Take an object with you to use for a centering point like a cone or a chair. Put the car into a high gear and drive circles around the object. The steering should be clocked at a constant angle and you should not be making any adjustments to turn the car around in a circle. When you are driving, only look at the object in the center of the circle. In a high gear, accelerate in a circle slowly until the tires start to howl. If they aren't making noise, you are not doing it right. If you are not keeping your eyes solidly in the center of the circle, you are not skidpadding right. This is the point where you are reaching the limit of grip. The noise is the tires communicating this back to you. Keep your foot on the accelerator and go more into the gas. At this point, is the back starting to come around or the front starting to push when you exceed the limits of grip? If the back end is coming around under throttle at the limit, soften the rear bar. If the front is starting to push; then if you lift slightly on the throttle, does the front tighten back up? If it doesn't tighten back up, then either soften the front bar or stiffen the rear.

04' G35 Coupe(finally in the garage)
6-sp Diamond Graphite/Willow w/Premium