Gotcha Bruce, I am pretty sure I met both of you at Kershaw last year. I don't recall seeing him on track in the race but I do kinda have a visual of it from Qualifying. Glad he had a good time.

On the 4.11 FD, the ITCS says any final drive ratio is allowed provided no housing modification is made - the Audi drops right in.

Personally, I think the lsd made a huge difference in how the car feels and allows you to get on the power so much earlier.