Muffler noise??

[rfgleas]

Own an 01 I30t with 100k on it. Recently the exhaust has changed pitch and is louder. The single muffler has two exhaust "pipes" coming from it. However, I find exhaust only coming from the outboard pipe, the inboard has nothing. Is this right? Can the muffler plug internally?

Thanks in advance for your assistance!

[Markc]

I believe that there's an internal valve that only opens the second outlet @ higher R.P.M's/pressures.

[loystock]

A louder than normal noise from the exhaust may indicate a busted muffler and/or holes on the exhaust pipe. Check the condition of the muffler and the exhaust pipe. Look for rust hole(s) and inspect the welded areas at the joints.

[rfgleas]

External inspection shows no leakage or holes. Are broken internal baffles common on these mufflers?

[NutriaforBreakfast]

Get a friend to help listen and while the car is running put you
hand (PLEASE wear a heavy duty glove) over the end of the
tailpipe and see if there is any areas blowing out