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Corsa extreme exhaust question

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Old Jul 6, 2021 | 10:45 AM
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Default Corsa extreme exhaust question

I would like to use a Corsa extreme cat back, but I have a full 3 inch setup. Corsa informed me they only offer 2.5, is anyone running a Corsa exhaust with a 3 inch X pipe if so did you have someone custom weld them together or is there an "easier" alternative.

Thanks for anyone and everyone's time.

cheers
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Old Jul 6, 2021 | 02:50 PM
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My Kooks 3" x pipe necks down to 2.5 right at the end to fit with "factory fit" cat backs like the Corsa system. I have the Xtreme on my car as well.
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Old Jul 6, 2021 | 06:02 PM
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Same with my Texas speed 3" x pipe. Easiest way to tell would be to see if your x pipe is advertised to work with the stock cat back. If it does, the corsas will work fine too
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Old Jul 6, 2021 | 08:56 PM
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their flange bolts up to 3" system no problem, it necks down to 2.5" after the flange on the muffler side... if you want a true 3" then yeah you will have to do some modifying... it won't lose any noticeable power only being 2.5", I wouldn't worry about that personally
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Old Jul 7, 2021 | 06:22 AM
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Originally Posted by neutron82
their flange bolts up to 3" system no problem, it necks down to 2.5" after the flange on the muffler side... if you want a true 3" then yeah you will have to do some modifying... it won't lose any noticeable power only being 2.5", I wouldn't worry about that personally
I’m not worried about power loss. My current setup is a No name 3 inch X pipe. On the website it says it bolts up to a 2.5. So you’re saying it’s actually a 3 inch flange? When I called they said it bolts up to the stock exhaust which would be 2.5 and they don’t offer 3 inch cross over pipes, which is why the kooks pipe is 3 inch but necks down to 2.5 to accept most axle back setups.
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Old Jul 7, 2021 | 07:50 AM
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**** you're right, the neck down is on the header side so yeah it is a 2.5" flange... you would either have to weld a flange to neck it down to 2.5" on your midpipe or weld a 3" flange on the corsa over axel pipes
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