Re: Couple questions :)
i use the banana expansion w/ muffler. It gave my GT-2A a lot more bottom end torque. Can almost start from dead stop. But the best is the ping-ping sound.
It lost a lil off the top km/h...was getting about 40 km/h and down to about 36@ WOT; but I wanted the low end torque to get up the hills.
mission accomplished for my needs.....carb next.