OEM vs. High Flow Cats

[George-CZ]

Originally Posted by TheButcher

Here in Kommiefornia we are officially screwed. We can’t really change anything cat forward except some CARB #’d shorty headers. Can’t touch the cats at all. The difference as far as emissions actual data? No clue. But I do believe most HF cats are “spun metallic” and stock are standard platinum style cats. Sorry, don’t know the technical name. On my GTO’s the HF cats were a big performance gain, for the money.

You have a beautiful area, but this would probably push me beyond the borders.

I am not a supporter of pouring oil into nature, I have the option of sorting waste, so I sort waste. As a firefighter, I helped eliminate a lot of environmental problems.
But chasing grams of emissions ... That's really ridiculous.