Thumping exhaust! Any thoughts?
 

Hi guys, I've this small little sound that's bugging me. I've posted the problem in the Tech Section. Just wanna gether a little more info before sending the car down to the dealer, don't want them to start taking the car apart for no reason.

The Problem:
It sound very much like a heavy base thumping from a car(closed door). It's not loud but very noticeable. Probably thumping away like a slow heart beat a little more irregular. Again sounds like some kind of combustion happening in the exhaust system. And it sounds very much coming from the muffler, but I'm can't make it out if the thumping happens in the muffler section or is it from the engine and being amplified in the muffler section??

So, wondering if you guys with the JDM RX do get this sound after your drive. So far from the Tech Sec discuss, missfiring seems to be the closer possibility, but then I don't think that's the problem.

Cheers.

same boat pal...

My guess could be misfire....