I finally got to install the Big Gun Rev Box I ordered a week ago. I hadn't noticed anything out of the ordinary from it yet, besides maybe a lil' more bottom end. It is readily lifting the front end off of the ground from a dead stop without tryin'. But it might have been doin' that already! I had'nt got a chance to stretch it out on a long road yet, but I'll take it to the country roads and trails tuesday. I'll keep y'all informed of the test results!