Cats or no cats

What do you guys think. Should I have the cats taken off or keep them???

I kinda like to have everything that came on the car, on the car. Unless it is a pretty active street/strip car. Or a street rod. but if it was my daily driver/fun vehicle i'd keep it.....then again you may see a good enough increase in MPG it may be worth it

I kinda like to have everything that came on the car, on the car. Unless it is a pretty active street/strip car. Or a street rod. but if it was my daily driver/fun vehicle i'd keep it.....then again you may see a good enough increase in MPG it may be worth it
I got long tubes on the car now and thought the same thing. Right now I am loosing about half if not more of my ground clearance from the damn cats. I am not worried about performance with them I got high flo cats put on. I am worried about beating the under side of my car to shit...

Edit: keep in mind I don't have to pass emissions in Oregon

Cut um out, If they are bottoming out then get rid of them. Also i still think you will see some performance. I cut the cat off my s10 b/c it was plugged and it runs great now.

off

dont have to pass emissions? Take those suckers off.

I took mine off , so I am going to say take the fucker out.

Speaking of verters, if I got a new catback and I decided to ditch my cat would it just bolt up to the y pipe with no problems? Or would it just be easier to buy a high flowing one?

How do you bottom out because of a converter?? Do they make a flatter high flow one? o_O;;

Speaking of verters, if I got a new catback and I decided to ditch my cat would it just bolt up to the y pipe with no problems? Or would it just be easier to buy a high flowing one?
You would have to either get the exhaust welded to the catback or have a crossover pipe put in its place that have the same bolt pattern as the cat.

no emission test??? Get em outta there! no emission=no cats

your car will be more throaty sounding with it off... the only downside is it might smell a little stronger and you burn a lil hole in the ozone lol .... but I vote for taking it off... I took mine off

well, since its already a problem..i'd take it off...i changed me mind!
and in illinois no testing either...most places in illinois that is

Im going both ways here..........;-)
Save the environment.......or sound a little better, a little more flow......
You decide........my brain just turned off for the day.......

sounds like i wanna move to Oregon :lol: . take um of and get an off road y-pipe. might pick up some mpg. that way u don't have to do any welding and u have the option of reinstalling ur stock setup if u ever decide too.

Does anyone know if you can pass emissions w/ no cats?

Very doubtful.. its what takes out most of the bad stuff. :lol:

Oh well

if your car is '96 or newer most state emission tests are just an obd2 check.
emulators can be wired in to keep the light off. the guts can be punched out w\a hammer and a piece of rebar if it needs to pass a visual inspection.

The main reason I want them off now is my ground clearance... I had them off for a day. My dumb ass went and had cats put back on...

Dumbass :lol2:

Dumbass :lol2:
My check engine light came on even with foolers on. I was leaving for my trip the next day did not feel like dealing with a light for the whole trip...

lose the cats an get a dog...



















...box.

there are a couple differnt type of emulators. the kind i used has a 12v power feed,switches o to 870mv back and forth can watch the down stream sensors work on a scan tool. they are not even hooked up. put the emulator under the hood,cut the signal wires at the pcm and spliced it the fooler. O2heater monitor will not reset , but who cares 2000 and eariler you are allowed 2 monitors not complete,'01 and up just one. this was on a '99 gmc w\5.3L eng. alot of times after market cats don't solve anything on gm cars