Ok here it is. The real deal. Only a few even compare, and it isn't DMS. By the way, Bilstein builds these and DMS struts. Now I just need to find some good pics of the triple adjustable Ohlins suspension that is out there for our cars.
I emailed them yesterday about pricing and options on their suspensions and they got back to me today. They have several options ranging in price from the non adjustable, but EXTREMELY high quality street suspension for $1500 euro, on up. The others are below. I have some more details on the awesom capabilities of these struts too if anyone is interested.
GRNa (little a with origine topmounts) and 45mm 3694 Euro
GRNa (little a with origine topmounts) and 55mm 4790 Euro
GRA with allu topmount and 45mm 4076 Euro
GRA with allu topmount and 55mm 5172 Euro
There are a few differences between the Group N and Group A other than the top mounts too.
Yes, Bilstein does build DMS struts or at least they did as recently as two years ago. In Australia I have seen them called by many people Drummond/Bilstein. They are designed to DMS specs though.
The Juicy details are 22 way rebound, high speed damping, and low speed damping. Struts that automatically compensate rebound as the strut gets hotter. Seperate oil resevoir that mounts inside the engine bay. To put it simply, struts that are used on World Rally cars, not just on regional or national level cars.
Kent - If Bilstein does build DMS's shocks, DMS sure isn't proud of it. I looked through their entire website (excluding the fitment guide) and didn't see one mention of Bilstein.
I've got an email off to Dave Clark to see what he knows.
Bilstein does NOT build DMS shocks. DMS used to use some Bilstein internals specifically the bushings that some people had problems with on their DMS 40s. They no longer source those Bushings from Bilstein due to the associated problems. They use there own Bushings for the 40s as they always have in the 50s.
The only reason they may sometimes be called Bilstein type shocks is because they use an inverted strut design originally developed by Bilstein so sometimes instead of saying inverted some people say a Bilstein strut.
Well Tom knows quite and bit, and he could be correct. I am only going from the info that I have heard from around a dozen individuals who know the industry pretty well, and a few australian websites I ran across while searching the web for high end struts.
Regardless, all of this is not related to the fact that the link I posted at the top is to one of the absolute finest suspensions systems in the world . If you want a race car suspension for you car, then that is where you should look.
Interestingly enough the Powerflex has components from both Bilstein and Ohlins, who are probably the two finest suspension component manufacturers in the world.
Arguments to the contrary are worthless, you will simply not find anything better for the GC8, GDA, or anything else. Yes they are expensive. But for what they are, the price is more than reasonable.