They are loud from idle till vtec. Once vtec hits you won't here them. The way I test for them is to ease into vtec real light in third gear or so and if it clears out when vtec kicks them the lma's are your culprit. I too think your problem is exhaust related though.
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Don't bother giving me "rep", I won't return it and I think it is stupid.
Gracie Barra Clearwater
Gyms in Clearwater, St. Pete and Port Richey
pm me if you are interested in trying a free class at any of the gyms.