Dont waste your money on a TB/Plenum save up and do gears or something worth doing. Im running stock TB/Plenum and they're working fine, plus everyone knows youd be luck to see 5hp with them just because the stockers aren't that restrictive.
Everything that came on the car stock "works just fine", that doesn't mean replacing it won't be an improvement. Even if it only gets you 5hp, that's 5hp that you wouldn't have without it. No bolt-on, save for a blower or nitrous, is going to net you high HP gains but every one will get you a little, and likely bring you some pleasure from the job you completed.




