2.4lt CH exhaust help

"WILL ONLY SUIT MODELS WITHOUT CAT IN THE MANIFOLD"
pretty sure ours has the cat in the location it's talking about, you could delete it but then you'd need those o2 sensor jamming things I was talking about.
 
i went with complete cat deletes race headers started throwing cel errors got an obd2 blutooth scan tool remove the check engine light cel eliminators dont do *poo* unless its after a cat ... planning on just getting whole new ecu soon unless go with the design that bolts directly original stock system ive seen wildcat do a direct bolt on to top cat header... just replace whole thing i suggest its what i did a such and improvement only cost total around 850 - 900
 
jrdcl said:
i went with complete cat deletes race headers started throwing cel errors got an obd2 blutooth scan tool remove the check engine light cel eliminators dont do s*** unless its after a cat ... planning on just getting whole new ecu soon unless go with the design that bolts directly original stock system ive seen wildcat do a direct bolt on to top cat header... just replace whole thing i suggest its what i did a such and improvement only cost total around 850 - 900
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the reason a CEL would be thrown is the sensor after the missing cat would throw an error up. the australian delivered 4g69 has either 2 or 3 o2 sensors, and definitely one after the first manifold cat which will throw the error giving the CEL light if it's removed.
you can remove the check engine light with an obd2 tool however chances are the engine will still be stuck in warmup mode in terms of fuel mix, throwing your fuel consumption and performance to *poo*.
 
should have stated i started with race headers cat delete pipes running stock system with cannon was as loud as a v8.... now have a cat installed with complete 2 1/2 system... i know why cel errors have occurred hence why im getting new ecu.....
 
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