Corsa muffler question

Hi all! I have a 12 Screw currently with the corsa sport exhaust installed. thinking of going louder. Is there a physical difference in the sport vs extreme muffler or is the only difference the resonator delete pipe? Thanks!!!

@Rookie

Resonator Delete pipe

i've heard different takes on this, some say they're the same, others say internals are different. i've heard the sport with the resonator delete...doesn't sound bad at all, but doesn't have the growl of the xtreme.

I can post pics of the internals of a sport muffler and an extreme muffler to show you that they are the same.

We like pics

Cut in half would be awesome...never seen these specific muffler internals


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Well Im not home right now so I have no pics but I'll describe it as best I can. The muffler is actually a straight through pipe, with a 2 1/2" diameter hole at the beginning of the muffler, and at the exit of the muffler. Those holes lead into the actual muffler surrounding the pipe, and reduce things like drone and noise unless you're absolutely getting on it. Below the holes are slits cut into the pipe, no idea what the purpose of those are, but they also open up into the muffler area that contains corsa's patented RSC stuff which basically looks like a maze of chambers.

Yes, the sport utilizes the factory resonator while the extreme includes a resonator delete pipe.