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I've recently had a new exhaust fitted, and the exhaust shop reckons a previous owner of my 07 HR 350z may have had hi-flow cats installed. To my eye they don't seem to be aftermarket (no logos visible and not chrome or "flashy" aftermarket look), however I've never taken a look under another HR 350z and hence don't have anything to compare it to. Can anyone identify whether these (see pics attached) are stock or aftermarket cats, or provide any other helpful info on the topic?
10-24-2021, 05:28 PM
2007 HR Stock Cats?
