I was thinking of going with no cats on my new exhaust system but I was told that if I go with no cats something with the engine and computer will not run right...something to do with fuel...So I was thinking high flow cats and welding them to the h pipe I have....any recommendations?

 

you can go no cats but you need MIL eliminators and maybe 02 sensor.
no cats gives you a headache. Highflow is what i would do.

and depending on where you live high flow cats may be a no like here in cali. unless you find a select few that are compatible

 

keep the cats on it.. even high flow cats are better than none. All these catless cars are not helping our case on legislative fronts. If people would keep their cars approaching emissions friendly there wouldn't be near as much reason for People for the Ethical Treament of Air to freak out about.