light greens are known for tuning the yb to stage 2 which is approx 300bhp..

you can get anywhere up to 350-370 bhp without any problems as long as the engine has been looked after.. but for this you will need a 3 bar map sensor, dark green injectors or simens black injectors, suitable chip, bigger intercooler pref rs500 style, t34.63 turbo.

On the standard T3 you can prob get around 300 bhp comfortably without putting to much strain on the turbo.

My ideal road spec cossie would be a good 330bhp cossie, with a t34.48, 500 intercooler, larger cone filter, MSD chip, dark greens, 3 bar sensor. In relaity thats a good spec quick road going car but you get hungry for more power thats why my cars 450bhp and me and my old man are building a 550+ race car