I am going to try to remove 2 of my 4 cats tommorrow, and i was wondering if anyone knows anythign about it. I know nothing about it, and I am not at home right now, so that is why Im not spending hours looking it up, lol

I was just thinking that yall could save some time.

thanks

98 4.6 4x4

that should be all the info you need NGM, lolI

 

Remove the back ones instead of the fronts, removing the fronts will throw codes but the backs wont.

 

Is this the same for 06 models too??

 

The new trucks only have 2 cats

 

So the back cats wont make it throw codes?

 

Correct

 

Don't u have a tuner? If so just turn off the rear 02 sensors and you can take all the cats off if you want. I don't recommend it because the 4.6 and 5.4's like a little backpressure.

 

Is it safe to remove the two cats on a 06 or will this mess up gas mileage an give me a code light on the dash?
I was thinking of taking them off, an adding the flowmaster muffler with a turn down at the rear!

 

No, I still dont have a tuner, lol

and I think im going to try to get them off if I can find a place that is open today where i can get some pipe, or try to see what I have left in the garage.

 

You cant cut out the two cats w/o throwing a code