If i remove my cats, is there a way to not have a CEL? Will there be any horsepower gains?

 

If you remove the catalytic converters you would need a custom tune to eliminate CELs and make more power. Unfortunately, several years ago the EPA started fining tuners that were doing just that. Since then any reputable tuner will not release a tune for no Cats unless you can prove it is strictly off-road.

 

Not worth the fines if you get caught. Just sayin'.

 

There is no point in doing this, you will receive no noticable increase in power. Cats these days flow really well, its not the 70s anymore with restrictive cats.

 

I finally got around to removing the cats, but phuzduq is correct, there is absolutely no performance gains to be had.

Did get rid of all that caterwauling when I started up the engine, though! I think this one was the problem:

 

There is no smog testing where i live but it doesnt sound worth it.

 

You can still get tuned for it but they cant clear the CEL and unless you're boosted, you don't really need a tune update anyways. Have fun with the CEL though, there's ways around it but it's kind of pointless unless you're supercharged and melting them

 

Note: removal of a catalytic convertor or any other emissions related device is actually a federal offense.

I'm a little surprised the forum allows tips and tricks to be shared of how to do it considering we aren't allow to say we drive above the speed limit.

 

who shared any tips and tricks for how to do it? We actually all so far have said “don’t”

 

I don't think anyone here said how to work around it. Did I miss that?

You can either trick the second downstream sensors mechanically or use a flash...