...so got passed with the catless up (it is hard to see, I helped that by mudding it up a bit and putting the head shields on below - I really didn't want to swap that again), as well as the COBB turbo inlet that I didn't have a stock to replace with (scraped off the white branding, sprayed black primer on a paper towel and wiped a bit over, rubbed some road dust on it to antique). Stock DP, stock (silly small) intercooler. I suspect they didn't really look very hard, only a 5 minute check.
Pain in the ass, now to swap the DP, cooler, and various tubes back. Probably the last 2 years on this one, with 174xxx I'm not sure I'll need to do it again.
Random note, you don't really need to get that many miles to be OBDII ready; if you keep the gas tank rough half-full and keep it pegged at 60mph, it resets after like 25-30 miles.