My first update!
Thanks for the offer Justin, but I tested the Prodrive oval tip tonight on my car.
Thanks for the update on California testing. I'm still not 100% sure if I can/should include this "California data" into my tests or not. I'm pretty sure some asshat will sandblast me down the road if they buy an exhaust and I post that it's "legal" and they get a ticket when this testing is 100% NOT
official. If any of you think I should please PM me or post with your thoughts and I'll consider it.