[USCRooЯ]

Originally Posted by TreDirtyFive

Check out this dyno on the Riss Racing Intake...before and after removal.

http://www.e90post.com/forums/showthread.php?t=260272

yeah, i saw that.

pretty surprised. i will dyno them myself though and decide on my own which is more efficient.

Originally Posted by Zeph

which ones are you talking about?

the Riss racing DPs the the 3 - 2.75 - 2.5
the AR ones go from 3 - 2.5