High Flow cats?

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Feb 21, 2010 | 02:25 PM

#16

4.6 Punisher

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Joined: Aug 2008

Posts: 4,778

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From: Douglasville GA

No idea, I'm just parroting what I've heard.

Feb 21, 2010 | 06:20 PM

#17

05crewzer

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Joined: Jan 2009

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From: SugarLand

Quote:

Originally Posted by Weber27

Will the check engine light come on if you replace the cats? Also if you have 4 cats do you take out all 4 and replace with the 2 hi-flows or do you just remove 2 and replace them with the hi-flow leaving 2 stockers?

no the check engine light will not come on with the high flows.

it all depends on what you want your truck to sound like. if you want if louder then replace the front with high flows and delete the rears. i wouldnt really go any-other way, unless you left the stockers up front and deleted the rears. i wouldnt leave two stockers and two high flows. doesnt do your high flows justice.