Last time I contacted Komo, I got this reply on January 17:
"Many thanks for your Email and your interest in our Performance Upgrade kit. We are working on a solution which we can offer also as a shipping solution. For now can we only tune up the cars in our workshop."
This was for their 430 hp tune.
Honestly, from my experience with cars in the past and from what I could see on the Emira, it could really benefit from a true dual exhaust setup. That would undoubtedly release a decent amount of low rpm torque and some high rpm hp. The y-pipe with a cat on the back must be putting a lot of back pressure on the exhaust ports, especially combined with the 2 cats on the exhaust manifolds themselves. This would be why just removing the 3rd cat alone adds 5 hp (according to Jubu).