Getting high flow cat with Hypertech
#1
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I heard somewhere that if have a hypertech programmer and you have any engine work done to your truck, you have to program back to factory settings before having the work done. I"m getting ready to put a high flow cat on my truck and was wondering if i should de-program it just for that.
Everyone else who has a high flow cat, what difference did you notice with gas mileage and HP?
Everyone else who has a high flow cat, what difference did you notice with gas mileage and HP?
#2
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Sorry for the double post but...i went ahead and got the high flow cat already. I noticed the overhead computer reading out better gas mileage, will run a few tanks through for a more accurate average. I de-programmed it then reprogrammed it to be on teh safe side as far as teh Hypertech goes. I also noticed a nice little rumble as the motor racks off....
so i guess my next 2 steps are a K&N air filter adn a Fastman and I think I'm done for this year.
so i guess my next 2 steps are a K&N air filter adn a Fastman and I think I'm done for this year.
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