I thought only yellow decals added that much power. This must have been a SRT4 Type ARRRRRRRRRRRR.

But, seriously, what were the situations around it? Were you driving faster than normal, or doing anything else to call attention to yourself? Were you in a place that is known for ricers (Williamson Road)?

But, to echo what everyone else said, you modified your exhaust, and it is illegal. Just be glad you still have cats on it. That's a huge fine if I remember correctly...