linemupgo

On my 03 chevy truck with the 4.8, I am doing some exhaust work, and was wanting to know if I remove the cats will I get an 02 dtc or will it be ok?

linemupgo

Anyone know if t well set off a trouble code

krambo

iTrader: (4)

Your not getting replies because this question has been asked maybe 300 times. In short, yes you will throw a DTC. Try the search function to see what people have done to remediate the codes and still have the desired exhaust configuration. There are a couple of options.

linemupgo

Thank you very much I'll search a little harder, the first time I searched I got some stuff about headers and highflow cats. Then I got destacted!

trever1t

iTrader: (14)

you wil get a code from the rear O2 sensors. They can be tuned out with software or sims but the sims are hard to find.

00Silv4.8

iTrader: (10)

true. Easier to turn them off. Read some of the header threads.