Quote:
Originally posted by catca
...why don't you put your hollowed out cat on for the test and them just take it off after??
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I thought about that, but my "butt dyno" isn't calibrated to 100% accuracy.

The only way I would be satisfied with the decision was if it was tested on a real dyno, and was hoping someone on the forum had already "been there - done that".
However, I'll probably end up swapping and trying it for the next emissions test!