delta_bratwurst

So I'm on lunch break right now and thinking about taking off the cats from my new header and X pipe system on my 01 Z when I get home. Can I safely remove the cats without the car going into limp mode because the emissions will be out of whack? I haven't had the chance to tune it yet.

Vetnutts

if you do, just add spark defoulers. It will trick the computer and not throw a code. C

3sACROWD

[QUOTE=delta_bratwurst;1594999087] Can I safely remove the cats without the car going into limp mode because the emissions will be out of whack? /QUOTE]

Yes. Your check engine light will activate and throw codes for catalytic efficiency 0410 and 0420 IIRC. Your car will run fine otherwise.

There are a total of 4 O2 sensors. The first two are what the send info to the pcm to adjust the air / fuel mixture and are before the cats. The second two are after the cats.