So heres whats going on lately it seems like my trac has gotten slow in city driving especially when im accelerating. On the highway it doest feel to much different. I have a flowmaster exhaust, and a K&N cold air. To eliminate a few things the air filter is clean, the MAF is clean. I kinda feel like it is the cats because they smell alittle rotten lately and its acting like my ranger did when they went bad but I dont hear any ratteling when I hit them. I havent taken it to a shop yet because I wanted to hear your guys opinions. Thx in advance.