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I had an issue with my vrsf catted DP passing emissions for my 240i, I thought honestly with a drive cycle and the catted downpipe emissions wouldn't be a hassle like my f80 but it didn't pass. Brought it to a shop to get the car emissions passable, they added a bung to the downpipe to pass it and that still didn't even pass the car. Just went to a Polish guy and he passed it or me with the tune on it... See if you can find any emissions gurus that can pass it, you'll save $ trying to get it done and not having it pass.
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