Hey there I am currently have a BA 4 speed auto NA I6 with full exhaust, growler airbox, 20% underdrives and a custom tune an am currently running 175+rwkw. However this car will never be an extremely quick car and am coming near the end of modifying it. With the money I save from not getting 4.10 diff gears, cams, and port and polishing the heads I could slip myself inside of a turbo which will desimate and make 3 times as much power. That being said I am looking at upgrading to a turbo in August/September and am wondering what sort of mods I will need to run low 12's high 11's? I am wanting to know what mods as well as the brand names to use and also what sort of power and which work shops to go to down in Melbourne. So far I have G&D performance which claim to send you into the 11's for the same price as a set of new wheels or there is HPF which have modified my car and tuned it to date. All you turbo owners out there please drop some advice and share your knowlege. I would really appreciate it. Regards Michael