It would be nice to know if there is something in OC similar to Best Muffler (La Crescenta) that can perform the mod, but not necessarily EAS. Don't get me wrong, I have nothing against them. Their work is great.
OEM Exhaust Mod - So Cal
http://www.m3post.com/forums/showthread.php?t=727142
Another member posted that he paid $150 for the mod
Cheap OEM Exhaust Mod in East Bay
http://www.m3post.com/forums/showthread.php?t=726419