Thread: Catless wonder?
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Old 11-10-2019, 06:40 AM   #3
maytag
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Join Date: Mar 2018
Location: Utah
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Quote:
Originally Posted by JimmyBad View Post
I went full catless about a year ago. I never tried the setup you're talking about, so I can't help you there. But, I'm going to tell you that I got lots of trouble with o2 spacers trying to eliminate the CEL. I finally went with a factory ROW tune and that fixed everything for me.
The factory ROW tune somehow passes domestic emissions testing, even though it's not monitoring cats?
I have an aftermarket tune I run most of the year, which doesn't monitor cats, and so at i.m. testing, it comes back "not ready".

Waddya know?

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