The sound after desnorkling is pretty cool, especially at the 3000k range and up. I have read 100's of post in numerous threads and it seems the mpg loss mostly comes from people changing their driving habits to here the new sound of their engines. I have only seen 1 guy who claims his mileage went to 10mpg on a 40 mile trip. I consider that post worthless and without merit as there is no way you will drop 40% to 50% in mileage.
I still haven't seen any concrete data, just opinions. For now I will keep it off as the sound is pretty cool. I do monitor my MPG on every fill up and will report my findings.
Last edited by mptoledo; 08-16-2009 at 04:46 PM.
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