I want to trail ride but im almost positive that in minnesota and Wisconsin you have to run a spark arested silancer not sure what to go with. Products - MX - FMF Racing
just a word of warning if u do buy that one.... its very long and you will probably need a long bumper or stay with a stock rear bumper or it will scrap, i have the turbine core 2 muffler and i cut 3 inches off it so that i could use a aftermarket bumper with it