I have Koni's on all four corners of my 69 Z. I have Koni's on the front of the El Camino. Gabriel Hi Jacker air shocks in the back.

Best part about the Koni's is they are adjustable.

I run Bilstein on my Bimmers. You have to pick from touring, HD and Sport. Sports are really stiff... really stiff.

The GM/Bilsteins work really well on a first gen Camaro, but you cannot adjust like you can a Koni.