Miata Turbo Forum - Boost cars, acquire cats. - NA Koni Sport shocks with 400/250 springs

I bought the shocks new in year 2000. Was on stock springs for years, then FM springs, now these rates.

One of the front shocks has started leaking a little bit at the adjuster if turned. When left alone it's fine and doesn't leak.

Being said and the fact that they are 11 years old I'm unsure how the valving still is; they aren't blown, but surely not 100%. They can be serviced/revalved at $100 a pop a tuned for the spring rates.

I've tried contacting Koni about my Lifetime Warrenty to try to get them serviced, but I cannot produce my original receipt and the shop I bought it from purged all records before 2004 :(

They have the FCM spacers to prevent the shock from bottoming out.

Both springs are "new":

7" 400 lb/in QA1 springs on the front.
8" 250 lb/in Suspension Technology springs in the rear.

NB Topmounts. I have extra hardware and bushings to include.

Old FCM 54mm bumps cut down to around 40mm. One of them is cut in two for a reason I cant remember.

Ebay sleeves. The one on the rear is cut shorter when I attempted to install them on Illuminas.

Tossed in as is, you'll be at 12.25" F and 12.75" R give or take, and have plenty of bump and droop travel.

The ride quality is typical of Koni shocks, a little jarring on some bumps but handle themselves competently, smooth on the highway. I blame a lot of my harshness on my 16" wheels.

I'm looking for $350 shipped (heavy), mainly for the price of the springs and mounts.

https://www.miataturbo.net/attachmen...1&d=1300457203