Will Gutting the Cat throw a code?

[95astrovan]

i need some more volume, but i dont wanna completely break the knob off. im thinkin of just shovin a piece of re-bar down the middle of the cat and pushin as much mess out as possible. will this throw any kinda code or will i need a sim?

[NCState98]

Re: Will Gutting the Cat throw a code?

It probably will throw a code and you more than likely will need a simulator or tuning to fix that. Just think, you're removing the cat material, so the O2 sensor which measures the effectiveness of the cat will probably decide that it isn't working quite right anymore.

I'm also not sure how much gutting the cat will change the sound on an otherwise stock exhaust. Do you have anything else done?

[Smoke Panther]

Re: Will Gutting the Cat throw a code?

expect P0420 or P0430

[96greenmachine]

Re: Will Gutting the Cat throw a code?

b4 i had my hi-flow cat installed my stock cat was gutted when i had the hi-flow put on it made it a tad quieter but thats with my flowmaster 40 dual outlets...its not gonna make a big difference plus u wont pass emmissions

[kristen]

Re: Will Gutting the Cat throw a code?

you will, so just get a o2 sim

[95astrovan]

Re: Will Gutting the Cat throw a code?

it's 2.5 pipe w/ a dynomax flowthrough type muffler, and i dont have to worry bout emissions here in NC, its a '95

[96greenmachine]

Re: Will Gutting the Cat throw a code?

lucky bastard lol i wish it was still that way here

[Daviselk]

Re: Will Gutting the Cat throw a code?

its a 95? so no post-cat o2 sensor? shouldent throw a code...

[kristen]

Re: Will Gutting the Cat throw a code?

wasn't aware of your year. you will be fine