Exhaust question
 

What is the size of the factory exhaust on an 01 gt? I want to buy some mufflers, and I want 2.5". If the stock exhaust is 2.5 I can buy just mufflers, if not I will have to find a catback system. I was looking at Hooker Aero chambers. I couldnt find a catback though. If anyone knows where I might be able to get one, let me know. Thanks.

Caymon