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FoundNemo · 02-05-2020, 08:06 AM

Deleting the secondary cats can cause false knock fyi. It can be tuned out or a resonator put in its place to avoid exciting the knock sensors most likely. Just fair warning.

02-05-2020, 08:06 AM	#5
FoundNemo Drives: 2019 ZL1 Join Date: Oct 2019 Location: GA Posts: 573	Deleting the secondary cats can cause false knock fyi. It can be tuned out or a resonator put in its place to avoid exciting the knock sensors most likely. Just fair warning.