07-23-2009, 05:22 PM
Vorshlag is the US development and supplier for the ASTs. Their new shocks are the 5100s which are a single adjustable, aluminum, monotube setup that are fully upgradeable to double and triple adjustable with remote resevoirs. They are not cheap but they have been quite competitive in autocross and roadcourse time trials.
Link: http://www.vorshlag.com/forums/forumdisplay.php?f=36
Performance wise I think they are right on par or superior to the custom revalved Bilsteins but I have a feeling they aren't quite as street capable or durable (not to mention a good bit more expensive). I do love the lightweight aluminum monotube design and use of 2.25" hyperco springs (bigger tire clearances). Definitely some top notch equipment but I really don't know that I need the extra bling. Interestingly enough AST designed a custom shock just for a E-Stock miata customer which was beat by a revalved Bilstein at nationals. Either system allows me upgrade to remote resevoir and dual adjustment but I really don't need / want either of those options at this time.
Another plus for me is that the revalved Bilstein is available NOW, whereas the ASTs are still finishing up development for the miata chassis with a west coast supplier / tester and I really don't have a definite time frame for when they will be in production. They just might be worth the wait though....
Link: http://www.vorshlag.com/forums/forumdisplay.php?f=36
Performance wise I think they are right on par or superior to the custom revalved Bilsteins but I have a feeling they aren't quite as street capable or durable (not to mention a good bit more expensive). I do love the lightweight aluminum monotube design and use of 2.25" hyperco springs (bigger tire clearances). Definitely some top notch equipment but I really don't know that I need the extra bling. Interestingly enough AST designed a custom shock just for a E-Stock miata customer which was beat by a revalved Bilstein at nationals. Either system allows me upgrade to remote resevoir and dual adjustment but I really don't need / want either of those options at this time.
Another plus for me is that the revalved Bilstein is available NOW, whereas the ASTs are still finishing up development for the miata chassis with a west coast supplier / tester and I really don't have a definite time frame for when they will be in production. They just might be worth the wait though....