[mschuep]

Ever since I got a new muffler on my '90 Corolla, the exhaust hiccups when I am at idle. Not a whole lot, just enough to tick me off. It sounds and feels very similar to a misfire, but I know this is not the case. It is just the exhaust building up and then farting because it doesn't have the pressure to go through the muffler smoothly. At any RPM's greater than idle, it completely goes away.

Can anything simple cure this?