I currently have what appears to be stock exhaust pipe with a little section that is a little bigger in diamiter, that I am guessing is a small glasspack muffler.

It is too loud inside the cabin for my taste. Do yous think I could just get a bigger glasspack put in there or something for minimal expense, and get a decent mix of performance comfort and efficiency out of it?

If I have a decent muffler in my 3" pipe, does 4" pipe really make much difference, for regular driving?

Mark

 

I am not sure but it sounds like you have a straight pipe. Do you see any other muffler or resonator? The stock muffler and resonator are rather large and you will notice them. If you don't see these then it is a straight pipe.

If it turns out to be a straight pipe then you could add a muffler to quiet the exhaust. I believe that a 4" will make the exhaust a little louder.

 

Ive heard walker mufflers are quiet but then again 4in mbrp sounds quite to me.