just for interest how much does it typically cost to change out stardard gearing for a 3.9 or 4.1, parts and installation ?
06 GT Tungsten with quicksilver stripes, Prem with red interior, FSAB, stickshift. Lightning Performance 62mm TB, WMS CAI with Ram Air box, Kooks Long Tube headers, X-pipe and Magnaflow back system. Diablo Predator tuner. Tokico D-spec adjustable shocks, Eibach Sportline springs, BMR adj panhard. Stern ST-1 Beast 20" x 8.5" & 9.5" staggered wheels in Hyperblack with Nitto 555s, 255/35 & 275/35. 12" Phat antenna.