Brian, you posted this on the Miata Forum last August...
That about sums it up... Once NC production ends we do hope to CARB the RoadsterSport Street Header. Will likely do CARB version of our midpipe too....just like we have done for 99-00 Miata, 01-04 Miata, and 05 Miata. Notice I just explained that it took THREE part numbers to get the job done for NB Miata midpipes...I don't expect the process for NC will be any easier or faster.
My current guess is likely get the midpipe done first. Been doing a lot of NC midpipe updating, first new version of our NC Midpipe in a few years coming next month.
Brian Goodwin
Good-Win Racing
www.good-win-racing.com