I put my silencer in and took my car to court...and the judge made me wait until everyone was done then he came outside and listened to my car...he made me rev it up a couple times...the only bad thing was that the cop was a dick so the whole time he was like "oh yeah this is so much better" but thats b/c the judge was up in his grill...but the judge said as long as i have the silencer in im str8