I JUST got home from having the 14" Magnaflow 4x9 14" universal muffler installed (part number 11225 I believe). At idle it's dead quiet, but with any kind of load that sucker is pretty loud. I wouldn't call it obnoxious...just loud (and reasonably deep for a 4-banger). It certainly doesn't sound anything at all like a Honda.
Anyone know how much quieter the extra 4" for an 18" muffler would make it?
I'm hoping to pick up some pro audio recording gear in the next little bit. When I do, I'll upload a proper recording.