dude, i think you have to do a lot more research then what it appears you are doing...
first of, there are no gains with our motor to getting LT headers because our short tubes are not restrictive, and with LT headers, you are going to need a new midpipe (unless you want to just weld to headers to the stock one, which is just pointless).
like i've told you in another thread, wait until you find a GT rear and yo'll be a lot happier. trust me.
if you are really dead set on the gears and t-lock, but also concerned on mpg, why don't you get 3.73s? plenty of pep and easier on the gas milage.
btw, what do you have, auto or manual?
__________________
K&N CAI, BBK TB, Pacesetter dual exhaust adaptor, Magnaflow dual exhaust, Steeda Tri ax shifter, GT front brakes, 8.8" rear, 3.73s
|