taco eater :
Will C from san francisco, CA United States
all the dutch vespa guys run these for a reason. it's pretty much the best overall. great torque and low rpm performance + revs out seemingly forever
warning, the exhaust flange is a bit fragile due to the ID being quite large. be careful and it will be fine. give it a good smack on a curb and it will break off.
that being said, this kit + 43mm polini head, gianelli MEGA pipe, 13 sha, drilled out intake, maxed out rotary pad, mazzi anticipato crank, 80 pulley and malossi shoes gets me to 48.6 REAL fast