Hey guys I have a 03 gtp and recently (last 2 days) ive noticed there is smoke coming from underneath my car on my exhaust inbetween the front seats. possibly coming from my Cat but im not certian on that as i got it replaced at GM about 2 months ago. i know that this cant be normal lol so i was hoping you guys could give me some pointers on what to check for or concluding what my issue is.. the only code my car is throwing is for the MAF. im hoping to narrow this problem down so that i dont end up replacing a bunch of perfectly functioning parts thanks to my local Shops. Thanks in advance