dealer installed "performance" muffler
 

i have a 2007 si and was thinking of installing a performance muffler.has any one ever purchased the honda performance muffler,or would i better off going after market,and i dont want an extremely loud fart can either,just something with a nice exhaust tone

why not find out yourself?

http://www.youtube.com/results?searc...i+exhaust&aq=f

I bought and installed a iApex WSII cat-back exhaust for my 2000 Si and really like it. It is not obnoxious at all. I wanted an exhaust that didn't drown out the AEM cold-air intake when VTEC kicked in.
For every five people you ask, I'm sure you'll get five different answers. Welcome to the site, I'm sure you'll get a lot of helpful suggestions from the members.

Welcome the hcf.