Now you can experience a whopping 130% increase in power out of your Smart car! This literally turns this car from the slowest thing on the road to a car that will shove you into your seat when the pedal hits the metal. Stage 2 Smart 451 turbocharger system bumps up the power to an incredible 115 ponies at the wheels. The stage 2 system comes with an intercooler and boost is increased to 8 psi.