this is true for most places these days. west virginia is another. its illegal to have any modified exhaust including aftermarket systems that may even claim "50 state legal".
i was pulled over for my exhaust not too long ago and the officer explained it to me. he said in west virginia the vehicle needs a muffler and it has to be the OEM muffler or OEM equivalent, whatever that means, i have a modified inspection sticker now though so i should be ok and im not even worried about it anyways. anytime i have a police encounter they always let me go after i show them my weapons permit.
i was pulled over for my exhaust not too long ago and the officer explained it to me. he said in west virginia the vehicle needs a muffler and it has to be the OEM muffler or OEM equivalent, whatever that means, i have a modified inspection sticker now though so i should be ok and im not even worried about it anyways. anytime i have a police encounter they always let me go after i show them my weapons permit.