Quote:
Originally Posted by XutvJet
Quality, fitment, longevity, and lack of CELs.
The AA and others use cheaper cats. If you buy a super cheap catted DP, you can be certain that the cat will be of poor quality (may degrade quickly), will likely not fit right, and will definitely throw a CEL. The $1000-1100 AA catted DP is new to the market and hardly anyone is running them. The verdict is still out on the quality and lack of CELs.
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I don't think AA's cat is cheap at all, I looked it up before I bought it and the standalone Gesi converter was somewhere around $460 alone. It has some sort of epa cert too which isn't a bad thing, but might not mean anything either. I'll be testing it to see if that cel free claim holds up since there will be a couple months gap between installing and tuning, though yeah it's a high flow unit that will never be able to match the large size/cell count of the stock torpedo of a cat, but naturally I hope most people know that