Was thumbing around today and ran into this. Seems Noblesse has gone full out on Fit race tuning, and on their engine tuning page they had this listed as well -- a stainless race cat. Not sure if it'll fit ours, but it might. This might be a good answer for those who want to retain a cat, but need/want to have the higher flow associated with a cat-delete pipe. Price is listed at 99,750 yen, or about $820 USD at today's exchange. Anyway, just thought I'd share.