Buy Trevor's td05 setup if it hasn't sold yet and you're good to go
I would deff recommend going td05 or dr800 @up if you want to go low 11's, forget td04 if you're thinking in the low 11's unless you're going to use nitrous than its a diff story..Now, it all depends on what you're looking for as well, pump gas low 11's, race gas low 11's?..Remember tho, just cause you may have the setup for 11's don't mean you will make an 11 sec pass if you can't drive ,especially if you can't get a good launch...Alot has to do with the driver as well...Td05 or dr800@up that's what i'd do