That hood would look killer if you painted and striped it to match.
I think in the rpm band you will be running on a road course, you won't have an issue with those 62s spooling or keeping you in the power band.
I believe it's this kit that is from CJ Pony Parts. https://www.cjponyparts.com/magnaflow-cat-back-quad-tip-exhaust-kit-competition-series-3-stainless-steel-premium-fastback-gt-2015-2017-no-active-exhaust-fastback-gt-2018-2020/p/CBG88/
I bought my '17 in February. I was looking for lightning blue, and found one on a BMW dealer's used lot. Picked it up with 2,092 miles for mid 40K. I've been looking at prices since then, and thinking I got a pretty good deal rather than waiting...