Electric Exhaust Cutouts

Does anyone here run these cutouts on their exhaust? i'm afraid i would run them open on the road to often...

http://www.pfyc.com/store/merchant.m...ory_Code=GTEXH

my neighbor has those on his truck and they work pretty good just dont get carried away holding the switch too long they burn up pretty easy, he has burnt up 2 of them allready in a year but hes always fooling with them