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400 Posts
Discussion Starter #1
If i get a shorty header with the high flow cat and flex, would i still need an O2 cheater.I just dont want that damned cel on!!!

Thanks!.[thumb]
 

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you shouldnt need an o2 cheater, write focus central and see what they say.. but im pretty sure you dont need an o2 cheater
 

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no thats the point of getting the high flow cat
 

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Race header creates no restriction in exhaust flow. A hi flow cat is still in the exhaust flowpath. So the second O2 sensor is reading differently than the first O2 sensor, so the computer sees the difference and believes the cat is doing its job.
 

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Focals got it...When I run the race pipe on my shorty I use a cheater so it wont throw the light...And to smog it I just put the cat back on..Only five bolts...
 

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Why not spend the extra fifty bucks and get the R/T cat? I'm getting it because of all the good reviews I've heard on here. It's stainless steel and I've heard flows better than the FC one. Go Here to see what I am talking about.
 
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