My car exhaust pipe clogged?

So after i got my transmission fixed i didn't notice that my car (2001 Mitsubishi eclipse gt) sounded and felt less powerful in acceleration then previously. I noticed it when i was driving home from my first day of work accelerating to 60 on the freeway, and it was really really slow. When i got near my house i parked and did a 0-60 test and i swore I heard my exhaust snort out something like a booger, and now all of a sudden it has this loud powerful and acceleration noise to it, and it accelerates a lot faster. I was wondering if this is bad or now it's nothing to worry about.