Re: The next upgrade...
That is an easier alternative...pick up an 8.8" rear from a GT or other solid rear axle car and bolt it up. Pick up some quad shocks, taller gears and a tlok re-build kit and you're set. Then you'd be set for FI or major power increases in the future.
A 7.5" tlok and gears would suffice for a stock/near stock v6. Expect to pay 150-180 each for the gears and tlok and anywhere from 300-500+ for install depending on the shop. Keep in mind installing gears is no simple matter and even a shop can make mistakes which will result in gear whine. It is crucial to get a written agreement from the shop saying that any gear whine is caused by improper install and will be adjusted...that usually weeds out the crap shops that wouldn't install the gears right in the first place.
12 Black GT500 SVT PP l VMP TVS l JLT123 l O/R X l 28x11.50Rx15 M/T Street R's l BMR Suspension l Recaros
03 Sonic Blue 3.8 / 17 Magnetic Fusion Sport 2.7 EB