The two colored induction towers are a waste of money. 1st of all the one on the drivers side is just for looks and the other is not much help. I have also heard that with this system you get alot of noise from under the hood. The xtreme flow package for the H2 looks to have the most benefits. The muffler by xtreme should give the the back pressure that the H2 needs which the other mufflers do not provide. Just my thoughts but you my want to look into the xtreme flow.
Here is the address:
http://www.xtremeflow.com