So when I do my exhaust I was thinking of getting a Magnaflow hi-flow spun cat. But should I do that or keep my stock cat and just gut it....or will it throw a code??? How much difference is there in power and air flow between the two? Thanks.

 

Removing my catalytic converter has had the single biggest impact on my truck performance since I did the plenum repair.

Cut out the cat and welded in some pipe.

 

Do you have emissions tests? Just gutting the cat or removing it will throw a code but its easy to fix and make go away.

 

to each his own, but i gutted my cat and it sounded like absolute ****. i couldn't stand it, so after spending a couple of hours patiently gutting it, i removed the whole thing.

if you do anything, be aware that you can sell the cat, or its innards for real money. i got $49 for the guts. i think stewie got about $75 for the whole cat.
http://www.sellyourcatsdirect.com/

by the way, i've not gotten a CEL after removal of the cat

 

I removed it while living in Georgia, no emissions there. I don't believe there are any here Southwest Va, but there is emissions testing in Northern Va near DC.

If I start with a clean slate (disconnect battery for a couple of minutes) it usually takes 2-3 days before the CEL comes on. Just haven't gotten the non fouler trick yet to put in.

Still running old O2 sensors though.

But I agree with DH, either remove or replace, don't gut.

 

Go with the Magnaflows I did//Love the sound and performance..

 

Thanks for your replys guys it's a huge help. Yes in north east Ohio we do have emissons testing, and they mirrior it too (I know it sucks). So I think I'll get the Magnaflow, it will be legal, flow good, and sound good too. And if I have to I'll do the non fouler trick on it. And when I sell my old cat, the money from that should pay for the new one.

 

Probably the best way to go. Shouldn't have to do the non-fouler trick.

 

Really? No non fouler...I can still use stock o2?

 

High flow cat should fit in place of the old one, shouldn't need to use the non fouler trick. Stock O2 should be fine.