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Anyone know for sure if there is a noticeable power difference between a set of hi-flow cats versus using smog legal cats? I live in Northern Virginia where they are nazi over emission testing and am leaning towards the smog legal cats just to be safe, but I know of some people that are still able to pass emissions with hi-flow cats by finding “specialty” speed shops and such. If it’s only a few extra horsepower that I may never actually feel, is it really worth it? Thanks, and I’m sorry if this has already been addressed elsewhere within the tt.net matrix. I'm new to this. Oh, and I’m still running stock turbos and pre-cats, if it makes a difference. Looking at a 2.5” Labree system the rest of the way back.
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