hey i jus saw the word prime 12. well i dont got a prime 12 but my friends has one and he got a 2 speed installed. not sure about using the rs4 3 2 speed because the gear teeth numbers will be different thus u will have to change the clutch bell also.
BTW i noticed that you're i frisco too. me and my friends are organizing a race on mon at my school's lower yard. If u want to come u can. My email is firstname.lastname@example.org