I auto-x'd the G20 stock. It was fairly slow
My future setup will be, Front Strut Bar, Rear Strut Bar, Rear Sway Bar. I'm also running KYB GR2's, but might go with AGX's but with stock springs. Since my car is a daily I don't want to deal with lowered suspension and stiff springs.
Now since I'm going turbo that will put me completely out of class, I would be allowed to use a full suspension. Which I would highly suggest if you want good numbers and can live with a stiff suspension
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