Get what you can find. Ver 7 heads better then Ver 6 RA??? Show me! AVCS is not all people make it out to be, just look at some dynos w/AVCS and without. The Ver 6 has a VF28 and the Ver 7 a VF30. They are very similar turbos but i think the VF28 is a better all round turbo, the vf30 only flows a few more CFM but the VF28 is ball bearing. Both engines have the same power making potential. RA gears kick azz! Will the Ver 7 intercooler fit in a GC?