Tuning an 03 Z71 Tahoe
03-16-2009, 11:00 AM
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Tuning an 03 Z71 Tahoe I recently bought my wife an 03 Z71 tahoe. It has had a cat system efficiency code since I bought it.
Has anyone else used EFI Live to eliminate the cats? any problems, improvements, etc.
I have been told that the cats on these trucks are very free flowing and that not much would be gained from ditching them.
For me the only reason I would do it is the $ since my wife doesn't let me drive it much anyways. I just don't want to buy new cats when I can just hack them out. Hopefully this would yield a slight improvement in mileage and power???
Has anyone else used EFI Live to eliminate the cats? any problems, improvements, etc.
I have been told that the cats on these trucks are very free flowing and that not much would be gained from ditching them.
For me the only reason I would do it is the $ since my wife doesn't let me drive it much anyways. I just don't want to buy new cats when I can just hack them out. Hopefully this would yield a slight improvement in mileage and power???
03-16-2009, 06:29 PM
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Yes that is the cheapest solution but I was just concerned about the potential for the catalytic element beginning to degrade and create unwanted backpressure.
What other mods are recommended on the L59 engine in this thing?
What other mods are recommended on the L59 engine in this thing?
Last edited by Gearhead-GM; 03-16-2009 at 09:39 PM.
