high flow cat question

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Aug 17, 2003

WannaBFast

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high flow cat question

ok i was wonderng for those of you that have high flow cats.. did you need an o2 simulator or did the engine run just fine with the standard o2 sensors?

Aug 17, 2003

krayziebonet4l

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runs just fine with the standard 02 sensors.

Aug 17, 2003

HYPR DRV

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Got the HP Header w/ Hi-flow cat and needed a O2 Sim. Otherwise CEL is on constantly and messes with the info sent to the ECU (Fuel maps, etc...) Probably best to go with the O2 sim. Luckily, mine came with the header.