miachvyboy

By gutting my cats (04 silverado rcsb 5.3) will it screw anything up like throwing up codes or run like crap? I have a spare set of cats that I was going to gut, but I heard that the 02 sensors will cause the ecu to freak out and cause the truck to run like crap.


The Falls

Quik

iTrader: (7)

i ran no cats for a few months and all it did was popped a SES light and ran fine

thunder550

iTrader: (70)

You can get someone to disable the O2's and cat codes in your tune, or just buy O2 simulators.

MorepowerTY

how much more hp would you gain from this? I'm thinking about it too.

99LoweredSierra

iTrader: (7)

I heard its only like 5hp if that. so some don't bother but don't hold my word i read that on here plus if they been on the truck a bit they gut themselves

Charged_5.3

Not that much HP, but alot more noise.

NeverSatisfied02

iTrader: (12)

I wanna gut mine or just have them cut out completely and have straight pipes welded in place. I was thinking about getting the corsa catback though and im not sure how it would sound with gutted cats? I am also planning to get a set of LT headers in the future too.

MorepowerTY

I could deal with 5 or hp and some more noise. Plus I heard the motor breathes better.

NeverSatisfied02

iTrader: (12)

I just ordered my corsa so ill be gutting the cats soon as well. I cant wait!!