Actually I have never had a hard time getting ahold of Neil. He finished my pipe last thursday, took about 3 weeks but that is great considering they are a custom setup. Cannot wait to try it, I am supposed to have it by thursday.
I just checked his pages and tried to find some hp/trq info. Didn't find any but after checking his pipe photos I'm quite sure he's trying to get as much torque as possible (as those pipes seemed to be very long and "fat")?