I went from the stock 3.27 to 4.10s and my average gas mileage went up. I live in delaware and there isnt a lot of highway driving. My miles per gallon went up 2.3 MPG!!!!
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1997GT SOHC, PI Heads,intake, SCT 4 bank, UPR CAI
Zex Nitrous system 125 hp shot,Steeda Tri-AX
March Underdrive pullies,2 1/2 O/R Pipe, Magnaflow Catbacks,Mac Upper and lower Control arms,5 speed
4.10 Gears,31 spline, Nitto 555 drag radials Spinning
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