1997 SVT cobra... are cats needed? i have one pipe with and one without... is it going to negatively effect my engine to run it without cats?

 

No negative effects, running without a cat, but it will not pass emissions like that, since it's OBD II. Just get a tuning license, and have the code removed, for insufficient catalyst, or just get MIL eliminators...

Is your car stock? One cat? Weird...

 

no i meant i have two completely seperate pipes... one has 2 cats the other has none...

 

i have an onroad x-pipe (with cats) i just slap on for emissons, i run an offroad xpipe (no cats)

everyday nothin hurt, she pulls a little harder tho

catalytic converters.

 

it will not run the best wo cats unless u get a tune or mil's but they are known not to last long

 

I dont think i can understand one single post in this thread. Have any of you passed english in high school?

If you have a mid-pipe that is O/R(without cats), go ahead and put it on, it will not harm anything, will free up some flow from the engine, and will make your car louder. It will throw a code so you can either get MIL eliminators(which sometimes give you problems), or you can just keep turning the code off with a tuner(Xcal2 and so on). Also if you take your car to a tuner to get it tuned, they can completely shut that code off, because if you do it from a tuning device yourself, it will keep coming back on every so often.

 

what won't last long? do you know what a cat is? it will run fine without it lol. iv'e been running no cat for like 2.5 years maybe 3 lol and it pulls harder than before, nothing hurt.

 

He is saying the code being off wont last long. Clearing the code with a tuner does just that. It clears it, you have to take it in to get it completely shut off is what he is saying. I have an o/r X on mine and love and my 89 GT had an o/r H pipe and was so damn loud and throaty. No cats in my opinion.

 

Well then reading comprehension owns you, because you obviously did NOT read my post....
And as you can well see, it has NOT been edited...

 

you are an exception, hahahaha just nvm lol... ha