Down pipe or Exhaust ?

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01-09-2014, 09:21 AM

#21

MAK Performance

F150 Vendor

Join Date: Jan 2013

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Quote:

Originally Posted by yotesmc

Can you run a catted y pipe without custom tuning?

On ours we still recommend custom tuning since the CEL my still be triggered. The flow is greater and the content of the high flow cats is different than the stock cats which is what triggers the CEL.

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01-09-2014, 03:31 PM

#22

yotesmc

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Join Date: Oct 2012

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Is there anyway to use eliminators on the o2 sensors?

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