Sorry, but your post to my web site showed up as "anonymous" and I couldn't respond. I still love the ECIS intake! I have the B&B Triflo exhaust and notice almost zero increase in the noise level from the ECIS. At most speeds it is not a factor, though at WOT it emits a noticeable but not annoying intake noise. Personally, I like the sound. For anyone who wants more info on the installation see my web site below.