What's a good aftermarket exhaust?
 

Just wanted to know what you guys thought was a good aftermarket exhaust for the boxsters.... I have a 2.5l and wanted to put on an aftermarket muffler but don't want one that's super loud....something with a nice low tone....had a magnaflow muffler on my z3 but it was so loud initially i had to put a resonator on because the police officer said i need to....after that it sounded good....also don't want to spend an arm and leg for it....from what i've seen we need two muffers????thanks...

Here you go,I just saved you $900+ compared to Evoms;
http://www.maxspeed-motorsports.com/986muffler.html

Che's exhaust is excellent! ;) I have it on mine with no issues but she sound pretty sweet and not LOUD!

is Che's immune from the 2-3k resonance? For me that's really important.

No it isn't immune from the 2-3k resonance. Most of the dual muffler designed exhaust have resonance,whether it be Top Speed's(Che's parts provider) or GHL.