Muffler replaced with straight pipe! How bad it can be? I have alot of friends that have done this and passes RTA and stuff, nobody ever got pulled over (luckily maybe, who knows). Although everywhere on the internet it says its not legal, 500 fine, 1 month impound, blackpoints etc. So is it really not legal to do it? I mean there are resonators that still muffle the sound so its supposed to be legal somewhat. What about these ricer hondas and nissans that's all over the place?