save your money stick with what you have and if you need more power gas it ,you are only getting around 28 cfm more with them and there rockers springs are junk and you will need a bigger cam and more comp to see the power impove it a bit and xross your legs they do not leak

1.37 60 ft [email]6.0@113[/email] [email]9.57@141[/email] 408 glide 3550lbs
new video http://www.youtube.com/watch?feature=player_embedded&v=Xvq3ZObywQE