I recently upgraded to a new set of XIDAs, and these are now for sale. There is nothing wrong with them, even after about 18k track miles. I needed higher spring rates since adding aero and figured it was an easy time to get a new package.
These have single-adjustable dampers made by AST, and the 700/450 lb-ft springs are from Hypercoil. They have helper springs, billet coaxial mounts, and the Torrington bearings.
They are confidence-inspiring, and when I swapped from Tein Flex (10/7kg) to these, I dropped 2 seconds per lap at Sebring.
Less than half-price - sold as-is. Price includes shipping within the continental United States.
$1250

 

PM’d. Serious Buyer.

 

How do you find the comparison to the new Xida? Night and day or can't tell yet

 

It is a pretty subtle difference. The higher spring rates allow the car to be flatter through the turns - less body roll - especially now with aero - and especially in fast sweepers. They are both excellent suspensions, and I am pleasantly surprised at how well these ones for sale have held up.

 

Thanks Doc. I have a set of AST with same springs rates. I was just curious whether it was worth the upgrade of the damper or more a spring rate difference.

 

These are sold