the saab was supposed to stay stock and just be a dd/cruiser. first it was a few small appearance things, then an intake and bpv kit, then i go to buy brakes (just to replace worn ones) and look what i end up with :bloated:
viggen ic (22x7x2.5), 22mm rear sway bar, steering rack clamp and brace (stops torque steer), viggen slotted brembos
the stock turbo at 20-22psi can get you to the high 200s with software, intake, ic, dp, exhaust, few other things. people who go to bigger turbos can get to 4-500hp on stock internals, but trannys usually give out around or before 400.
in the city which is my normal commute, very stop and go mixed with driving like an asshole, i get about 18mpg. straight highway cruising around 32mpg. if i lived more in the suburbs id probably see mid 20s on average.