Pinasco 26028504 EVOTEN BOOSTER GT 4643mm Cylinder Kit, 10mm Pin, 22mm Exhaust PIAGGIO 50 CIAO SI BRAVO BOXER

Ciao-Si-Bravo "EVOTEN BOOSTER" 26028504 GT 4643mm Thermal Unit, 10mm Pin, 0 22mm Exhaust. The Pinasco "EVOTEN BOOSTER" 0 46x43mm thermal unit is a new product with a 6-port cylinder and exhaust port with additional boosters. All "EVOTEN BOOSTER" thermal units, in the standard version, are supplied with 22mm flanged Pinasco exhaust manifolds, in the FULL version with 22, 25 and 28mm ones, central spark plug head unified with 5 studs fixed recessed which definitively eliminates the problem of vents in the combustion chamber and the consequent drops in performance; compression ratio of 13.5:1.