I currently have an SRI, but previously had a CAI for awhile. The CAI is in fact louder, but only slightly (which I prefer). They were nearly identical on the dyno. The CAI hydrolock issue scares me. My SRI came from TurboXs. It is not listed on there website, but I am pretty sure they can make one for you, since it utilizes the stock maf housing. I believe I have read about other SRI as well for the Speed6. Maybe check with discount parts warehouse.Do they make a Short Ram Intake for the MS6 and if so would you still be able to hear the turbo/BOV like you do with a cold air?