I just bought an 04 RA, and the PO has added an axle back exhaust setup that it too loud in my opnion. The muffler has a 4" tip and is too ricey. I'd like to swap it out for something stock sounding. Any suggestions?

nothing better that sotck for sound BUT in the intrest of information, the greddy one sounds good, or you just might want to buy a bigger (longer) resonator

Is there anywhere I can purchase a new OE RA muffler?

stock is always the quietest, as for finding the oem muffler, either go to your local mitsubishi dealer, or you can buy my stock muffler b/c i plan on doing a custom exhaust on my RA.

if you want send me pics and maybe we can trade mufflers, just pm me if your intrested.

yeah, im interested in trading a well, i have a stock muffler and 2.5" chrome tip for ya.