Fix or delete secondary air injection

[Jeffd]

I've recently developed P0410 and P1411 on a 130,000 mile, 2000 Boxster S. I've been messing around with the intake and whatnot to replace the power steering reservoir, AOS, and the purge valve so I'm it's likely I've got a vacuum leak I created. I've smoke tested and fixed a couple of vacuum leaks (one large) but the codes keep returning. Rather than pull things apart again to look for leaks and potentially replace parts I was considering doing a mail-in ROW tune and then just deleting the SAI system. Then I'd bypass the SAI and ensure the new, simpler vacuum circuit is leak free.

Any reason not to do this besides emissions testing? I'm close to being able to register the car as an antique and then I'll be exempt from inspections and emissions testing.