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      12-17-2017, 01:27 PM   #17
miked7285
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Drives: 2010 E92 M3
Join Date: Sep 2009
Location: Los Angeles, CA

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Quote:
Originally Posted by Gena the Crocodile View Post
Ok. I have already understood that to keep reasonably quiet at catless or HFC xpipe I should abondon the idea of keeping my m-perfomance exhaust.

It looks like the OEM rear section is a good compromise. The only question is:
HOW do I install the 100 HFC to the gintani catless x-pipe with 4 resonators?

Do I just delete the first pair of resonators and change them for 100 HFC?
I just got the Gintani HFC's that directly replace the two front resonators. All bolt on. The difference isn't as large as I would have thought. It definitely sounds better, more refined, helped with the rasp, and the smell is gone. I'm happy with it, but thought it would be a tad more quiet.

BTW the Gintani's are 300 CEL cats.
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