Thread: VRSF or AA DP?
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      02-13-2022, 02:49 PM   #3
theox77
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Drives: 2017 m240i
Join Date: Feb 2022
Location: Philly

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Quote:
Originally Posted by mike@x-ph.com View Post
Active Autowerke uses GESI cats that are EPA approved.

GESI cats do not throw a check engine light even if the car is in stock. The cheaper brands will.

Please note, that even if you have a tune that hides the check engine light, your car will fail emission testing if you are not using approved cats.
Damn. That's daunting. I guess im just gonna go catless then.
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