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      12-21-2011, 07:53 AM   #6
Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

Posts: 1,442
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Many states just do obd2 plug in and even a high flow cat car may fail since the high flow cats are beyond the rear 02. It seems to me that a harness to extend the rear sensors to past the high flow cat (with relocated bungs) might help.

My question is would 100 cell metallic core race cats with rear 02 located after pass obd2 readiness?
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