Nice. Check out LMR, LG and Katech. They are working on the exhaust as well. The OEM exhaust weighs 76 lbs, the cats another 16 lbs. I would love to see what TiCon comes up with for an aftermarket titanium exhaust.
And then there are just a few of us who would be happy just having the car to drive (sigh) so at this stage, modifying the exhaust on a non-existent vehicle is but a distant dream..