Well I bought the Steeda one before the CFM one came out, but the Steeda one isn't insanely low but it still makes the shifts much shorter, but yeah do some research.
Also I'd suggest that you don't get an intake or exhaust, neither gives much power and isn't really worth the cost (says the guy who has a Pipercross Viper).
Instead of buying a larger TB port yours, their are instructions on this site on how to do it.