Hi Splink,
I've only just got the TODA race header. It's an awesome improvement over stock. I thought originally I would get away with a the stock 4-2 header combined with a Spoon 2-1 cat by-pass mapped for my car. How wrong I was. With the TODA mapped I've gained huge amounts of mid-range torque and a good dose of power. See the gallery for my dyno images.
I don't know about any other TODA exhaust parts. It would be nice to have some TODA cams, but they are pretty expensive. I've got more than enough power from just adding the header to keep me happy for the moment. I'm going to wait for individual throttle bodies to evolve before doing anything else.
The other thing I've been trying to balance is noise. I was borderline at Goodwood on drive by on my last track day (before I had the TODA). Now that it's fitted it feels slightly quieter than my setup I hade before, which is a bonus.
If I was starting from scratch I would definately do the same intake and exhaust mods I've got now, again.
Can't wait for the next track day
Jon