pwrful c4

I have a 1994 with Corsa system the outlets seem to work on one side only,with dual tips I was not aware only one on each side worked,is this normal ?

Steve85

Yes, very little, if any, exhaust comes out of the other tip.

redvette6spd

Until you put your foot in it. This is how they combat drone and resonance. I don't know how it works but it dose.

MYCoupe

Somebody posted a pic a while back of the inside of a Corsa muffler. He had a damaged one and decided to open it up. That one tip per muffler is mostly blocked off to combat resonance as others have pointed out. It's the only system that I've had experience with on a C4 that does not resonate at all.

Mr Mojo

It isn't a fake tip, it just doesn't see a smuch use as the inner tip is pretty much a stright thru design.

It's all explained in the paperwork that comes with the Corsa System.

pwrful c4

Thanks for your feedback,I am happy to know it works some of the time, Paul

TM-Z06

Actually, the pseudo tip has absolutely nothing to do with the drone/resonance - that is all done in the Corsa resonator/h-pipe. I've experimented with the Corsa exhaust system, installing the mufflers only (with an x-pipe). Without the resonator, they drone like every other aftermarket muffler.

If you look closely at the resonator, you can actually see the slits in the 2 chambers they use to eliminate the resonance.

jrp

Here it is:
Dissected Corsa muffler
And again; it was double posted.

Here's a reply directly from Corsa.