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Old 01-10-2012, 12:59 PM
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Default high flow cat
I need to get a new cat and was looking at getting a high flow 3" but wanted to know if I would have issues with the O2 reading wrong like on my friends BMW?
 
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  #2  
Old 01-10-2012, 01:08 PM
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most likely yes you will... best idea is to get an oem cat or similar
 
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Old 01-10-2012, 02:10 PM
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+ 1 oem cat is a high flow cat
 
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Old 01-10-2012, 02:56 PM
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OEM cat on these trucks is a high flow cat, dodge did right by us in that respect, no need to replace it unless it has gone bad.
 
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Old 01-10-2012, 10:14 PM
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so if the oem cat is high flow, then would the OP be alright o2 sensor wise with an aftermarket high flow cat
 
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Old 01-10-2012, 10:26 PM
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more than likely yes i have never heard of a problem on these trucks with the o2 sensor

however changing to aftermarket cats has been known to cause problems with running correctly
 
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Old 01-10-2012, 10:38 PM
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I believe most cars built after 2002 has High Flow CAT from the factory alrdy.
 
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Old 01-11-2012, 12:08 AM
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Good to know these trucks already have high flow cats...I was about to chop mine out and slap a magnaflow high flow cat on...saved me a buch of money!
 
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Old 01-11-2012, 01:29 AM
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Im sure its going bad if not bad with it having 150000 on the OEM cat and the smell.
 
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Old 01-11-2012, 03:39 AM
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Mine was rusting on the outside and rattled when i first got the truck with 60,000 and it needed both o2 sensors so just got everything from the cat to the back done.
 
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