It wont rip off the headers, just the x-pipe, once you drop it railroad crossings are a no no.

I dont know if you can see it to good in this pic, but my x-pipe is only about 3in off the ground after the Eibach pro-kit.

 

i have a y-pipe. would i have the problems you guys do with duals?? I want to lower my car as well but am always worried about scraping

 

My main concern is that I have a somewhat steep driveway. The only thing I can see bottoming out on entrance/exit of my driveway is the turn-downs. The only way I can see the pipes themselves scraping is by going over humps. Bare with me, it's a keyboard drawing...but I think it'll get the point across: / - \ Something similar to that...or a speed bump. Damn, all I had to say was "speed bump". Just figured it out

 

Be careful backing out of the driveway. If your turn downs get hung up, then it could get real ugly. (Had a bad experience like that.)