x-ost high flow cats, throttle boring etc....
I was able to get in touch with X-OST today by phone. They do offer high flow, 100 cell, metallic cats for our rides. This is the main cat - not pre.. They quoted the stock/convetional cats as 400 cell - quite a difference. The price is $1090 Euro's (pair) less 30% discount (approx $1k US). Who knows what the actual performance improvement is (if any). X-ost did comment that the car would be noticeable louder, and there is a potential for a "cel". They have a fix for this in house. They claim to have a former Ferrari/Mas factory tuner and will reprogram the computer to avoid further issue - should it occur.
I have spoken to Jeff at Formula Dynamics at length and he believes he can tune for this. We are going to explore this and some other (new) performance upgrades for the car, and see if he can offer some pre-tuned packages using me as a test. One new idea we are going to explore is boring out the stock electronic throttle. I have done this in the past with other vehicles and picked up small gains in hp and response etc.. I am going to attempt to bore out my stock throttle, install a larger butterfly, then send it to Jeff for testing/tuning... I will post on this and the other mods as soon as we have something to report.