does 2.3 need a a cat? - Ranger-Forums - The Ultimate Ford Ranger Resource

2.3L & 2.5L I4 Tech General discussion of 2.3L and 2.5L I4 Ford Ranger engines.

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Old 07-12-2008
da lone ranger's Avatar
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does 2.3 need a a cat?

do they run better without a cat or does the motor need the backpressure of the cat to have power?
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Old 07-12-2008
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every car/truck that was made after 1975 is supposed to have a converter.

nothing you can do is going to make your 2.3 have more power unless you add boost.

plus your engine light will come on
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Old 07-12-2008
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2001.. is that a duratec?
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Old 07-12-2008
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Originally Posted by roddy1 View Post
2001.. is that a duratec?
yes, 2001.5 are duratechs
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Old 07-12-2008
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i was always told you had to leave it on for the light purposes,but i thought of doing the same thing here in nw would be easy to get away with no cat.i ended up just leaving mine on and going with no muffler.
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Old 07-12-2008
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Think the enviroment has enough problems already...
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Old 07-12-2008
Join Date: Apr 2005
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they dont need cats unless you like loud, (and not a beefy type loud). you can either live with the light on, or you can get a mil switch, that'll take care of the light. or theres always the option of getting the computer program changed a little. theres a option in there where you can not run a second o2 sensor. thats what i gotta do when i finally get my turbo engine running. plus it'll backfire like mother if you pull the cat

Last edited by pongorulz; 07-12-2008 at 07:30 PM.
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