consequences of removing catalytic converter

[Slim Teufel]

Have a friend who removed his catalytic converter in his Trooper ('91 - V6). It backfires very little and the growl is not too loud at all. What would be the negative consequences of removing catalytic converter? (other than fines/tickets/emissions testing......etcetera) Loss of torque? 02 sensor wreck havoc? Engine mechanical problems?

[gringo]

I replaced my catalytic converter for a resonator (bolts on so I can swap for emissions control) and have had no issues. The thing is that on my trooper the sensor is in front of the converter so no problem.

btw its a 94 rs

[mepr]

as long as theres no O2 sensore behind the cat there shouldnt be a problem.

[ZUK]

btt

[james west]

Originally posted by ZUK
btt

WTF????:shaking:

what more can be said?

[Independent4x]

Originally posted by Slim Teufel
What would be the negative consequences of removing catalytic converter?



none...it will be noisy-er, but you could "punch" it out clean and run it .....avoiding all the "inspection" issues.

you'll see a minimal increase in volume and a little better flow on acceleration. i run the cat on my F-250 like this .......really because i wasn't willing to spend $$ on a new one when mine clogged up.

[ZUK]

just don't want to see it go off the page........

[james west]

yeah its lookin dead over here guys...who's swapping rockwells into there pup?...something!:flipoff2:

[bkcraun]

So what happens on an OBD2 application where you have 02 sensors before and after the verts? Just a check engine light or performance issues? Anyone know how to turn off those damn check engine lights (98 Trooper)? Some of us don't live in emission check areas.

[StinkBug]

you have to have an OBD2 scanner to clear the CE codes, and yes on an OBD2 vehicle with O2s after the cat you will get a CE light and a code that its not gettin the readings it wants. There's really no noticeable performance increase so IMHO its not worth the trouble to remove em.

Dallas

[maxwell417]

Keep the cat, unless she is plugged up. If so replace it.

On my 89RS Trooper, it's running a cat no muffler. Sounds great, not too noisy :D

[sacramentophil]

ditching the cat. for more power is old-school bullshit and chicks will not dig you.