Magnaflow XL series mufflers

[C.]

http://www.magnaflow.com/02product/shopdisplaycategories.asp?zone=main&id=303

I'm thinking of getting a custom exhaust done using this muffler, but I’m not too familiar with it, so I wanted to hear your opinions first.
So does anyone have any experiences with it? anyone know how does the 3-chamber perforated core design affect performance and noise? Is the performance even comparable to a straight through design? Basically the point is, I like the fact that the design helps reduce resonance, but I want to know how it performs/sounds. Any input would be appreciated.

Thanks!!!

[sykikchimp]

I wouldn't think any muffler like that could make more power than a straight through. Car might sound better though.

[wootwoot]

chambered muffler=bad for hp on turbo
Get a straight through muffler and a resonator and call it a day

[420sx]

fuck chamber design. straight through. im sorry but most of the time noise goes together with power.

[mr_240sx]

get an Apex'i N1 catback and call it a day!