Reageer op: Piontek’s vespa si Home › Forums › Perso’s › Projecten › Piontek’s vespa si › Reageer op: Piontek’s vespa si 16 mei 2011 om 21:04 #486704 piontekTopic starterBerichten: 78 the result of this modify is a better engine response since the low revs up to the mid. renge The engine is more reactive and achieves much quicker the max torque.8)