Hello,
Below is my set of Bilsteins Sportsfor sale that were on my car. Purchased around 2000, but have maybe 10k miles on them. I went to a new set of Koni's because on the rear pair one of them was slightly stronger than the other. Honestly on the new shocks the car doesn't feel a lot different.
These would work well on a street car, if for track car I would send in the rears at least for a rebuild as you can send these to Bilstein for a service.
These look to be about $800 new for a set, I would like to get $150 for these.
I was running 911 front Boge strut housings in the front, I don't think they are the same as 914 strut housings. Any 68-85 911 Boge housing will fit.