I noticed when Im at neutral, I somtimes here this pulsating "burping" sound from my single exhaust. But sometimes I dont hear it. What is this? It almost sounds like an Sti with exhaust at a light. But that burping/bubbling sound is scaring me. Do I need a tune or something since Im modded?

 

Running a testpipe? If so, your probably just hearing the engines natural sound of the cylinders firing.

 

nope, still have my cat on

 

Does it happen after you wash your car? Like maybe you have water in the pipes?

 

nope

 

sounds like alot of water in the pipes...happened to me when i was working on the car in the winter. condesate builds up in the pipe if left to idle for a while. It could just be the nature of the exhaust too...unless its something new.

I vote water though

 

ok that makes sense! If this is the case, its not bad as far as performance or the cars health goes right? This is normal and usually corrects itself?

 

the condensation will burn out within 5 mins or less, it's fine