POLINI Feat LEFT (Austria) 450cc Custom Engine Kit – 54HP Vespa Conversion
Unleash absolute madness on two wheels. This elite performance kit from LEFT (Austria) transforms your Vespa into a true heavyweight powerhouse, engineered to pump out a staggering 54 horsepower.
Built for riders who demand extreme power and precision, this setup combines a robust, custom-built crankcase paired with a high-performance KTM 450cc top end. To harness every ounce of that power, this comprehensive kit comes fully loaded with a custom Polini CVT, Polini taller gears, a custom throttle body, ECU, airbox, and a race-proven Polini exhaust. It’s the ultimate fusion of Austrian engineering and Polini performance brutality, designed for serious builds that dominate the track and the street.
Key Highlights:
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Engine Output: Massive 54 HP performance upgrade.
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Core Powerplant: Custom-engineered crankcase + KTM 450cc top end.
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Transmission & Gearing: Custom Polini CVT paired with Polini taller gears.
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Fuel & Air Management: Custom throttle body, ECU, and high-flow airbox.
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Exhaust: High-performance exhaust system.
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Origin: Premium craftsmanship by LEFT (Aus
tria)
For vespa gts 200 / 250 / 300 / 310
