I put the S/370z rear sways on + GTSpec rear lower lateral and rear lower tie braces + 245/50R17 Continental ExtremeContact DWS tires at 42psi front and 40 rear. I am going to do an instrumented test here in the next couple days to see what G's I can pull on a cloverleaf or if I can find a parking lot that supports a 300ft diameter circle. A bit after accelerating out of a full cloverleaf yesterday I looked down and saw 80mph on the speedo. The rest of the GTSpec kit is next + FSTB.

 

Big difference when on snow. When OFF you can do donuts, when ON the VDC will almost stop you. On dry very hard to say because of AWD. I still noticed the blinking led when hardly push and accelerate in corners.