When I start the car or rev the engine, the muffler seems to sputter and sounds like something is stuck inside of it or something. Anyone ever encountered something like this? Nothing too serious right?

 

Sounding like a loose piece in it? More details please....

 

Kinda like something is loose. After I rev the engine as it gets back to idle it kinda has a sputter sound. Like there is something blocking. Its harding to explain fully thats the problem...

 

could be a clogged cat..

 

It's normal, does it sound like a pulsing sort of? Do you have any exhaust system mods?

 

Kinda like a pulsing, more of a putter. But only for a second after reving. Then it goes away.

 

No worries, its normal. Mine does it with an OBX catback, and you can imagine how much louder that is with the OBX vs stock catback.

 

Ok cool. Im doing a new exhaust soon anyways. I just wanted to be sure it was ok cause it came out of nowhere.

 

Mine sounds as if it is busted but my mechanic assures me there are no holes - so he is concluding something is broken inside the exhaust somewhere........ It is driving me nuts. Exhaust is bone stock (cheap replacement stocker actually - non-Nissan)

 

mine makes a noise too, drives me nuts...i was told i have a problem with the manifold. a leak or possible crack. all of a sudden the noise sounded better to me!