1. Running without a cat is what I'm referring to.
2. Edited my post so you can comprehend simple English.. and don't start on incorrect grammar.
3. I got EPA'd after being pulled over... had a GT5533r - stand next to an aeroplane and you will hear a similar sound.
4. I was just looking out for you here... Cons outweigh pro's, maybe you would realize if you inhaled less carbon monoxide... but have fun with your 0.2hp gain
5. Hopefully you get EPA'd and learn the hard way