RE: the hyper st PRO thread!
I doubt it, what engine are you planning to run on it?
I would use the Hyper 8.5 (buggy) Engine mounts though, I personally don't like the hyper st (RTR and PRO) engine mounts because they use a nut. The 8.5 engine mounts usually go for 9 - 11 bucks plus shipping on ebay, a lot of sellers are parting the buggy out.