The whole issue is not about volunteering info/specs on your car, but rather leave it for them to find out ... and if they do, don't bullshit them. You can get let off with a warning. Be a dickhead and you won't. You can't go flaming cops because you get busted lying.
And if you go cruising around with 19" rims, wires dangling everywhere, hi mount turbo, and all the other bling that screams "defect me" ... then don't be surprised when you get defected. Cop it sweet. I just can't understand the logic of some people who want a cars that screams "mine is faster than yours", yet want to left alone by the cops. And if you are going to act like a dickhead and lie and all, then please at least remove the SAU sticker if you have one.