Alright I have an 01 GT Auto with the following: K&N filter, 3:73 Gears, Mac Offroad H Pipe, and BFG DR's. My goal is to hit low 13's if possible N/A . Im thinking about upgrading to 4:10's some suspension work and maybe a high stall torque converter. What kind of mods are need to achieve these goals? Thanks to all that reply.
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