I have a brand new Hotchkis sport suspension for sale (Front and rear sway bars). Its a great addition to the Z and really improves handling, cornering, and overall performance of the car. It is unused and still sealed in the original box. Sold my car so no longer going to install them. Willing to sell for
$300 OBO (500 new). See the link below for details on the setup.
Hotchkis Sport Suspension