Yeah, the STS in my mx6 was awesome, I payed I think 40 for it brand new from a buddy, I suggest getting one, its badass shifting from a flick of the wrist lol I thought about cuttin it down, but its real easy to install, and very cheap, so I'd just buy one man, you'll be impressed.
EDIT: yeah it might not be that much of a help in the 1/4 mile, but it was so nice to shift even in normal driving. Acually now that I think about it, becuase of the installation of the STS, I had MAJOR trouble shifting from 1st to 2nd, like it too alot of strength, and puttin it in reverse was a bitch.
When I would leave it in gear like 3rd or something, people would NOT believe me that it was in gear, thats now short the throw was. But I suppose the only reason it didnt shift real smooth, was because of the fact that it was designed by pacesetter lol