[nluken]

Might be harder to track but what about CFR or some other metric to measure how many bugs are getting through review before versus after the introduction of your product?

You might respond that ultimately, developers need to stay in charge of the review process, but tracking that kind of thing reflects how the product is actually getting used. If you can prove it helps to ship features faster as opposed to just allowing more LOC to get past review (these are not the same thing!) then your product has a much stronger demonstrable value.