I used to have the 8500 x50. Dang good piece....BUT it aint gonna save your ass from laser, which most of the SHP is using. SOMEDAY when I have a buncha extra money, I'm going to put a x50 on the bike, along with laser jammers on the front and back. AND have 12'oclocker make me a "ACTIVE" radar jammer, which actually works (the legal ones are "PASSIVE" and are a scam. Moral of the story......don't speed.