V-10 Killer

iTrader: (22)

I don't feel like starting one of those "what gear should I get" threads.

I do however want to know what key pieces of information I should base my decision on? And how should they affect my decision?

Tire Height
A4, M6 shift points
Peak HP/TQ
Car Weight
Intended Use

I'd really like to feel confident I spent my money the wisest when I order my 12-bolt after christmas

Thanks