They are making some minor adjustments right now, so the specific specs are not yet available, but- the non cat header that is currently listed is the exact same one that they use on their race cars.
I'm going to call on Mon- I want one too, but he told me to call back in two weeks. Mon will be right around there, I checked my post and that was on the 22nd. BELIEVE ME- I'll post as soon as I have the info!