Carburation adjusting ± 20% at min/medium/max RPM limiter: + 1000 RPM 4 different maps: curve 0: original cylinder, original camshaft, Malossi exhaust system with DB killer curve 1: Malossi cylinder, original camshaft, original exhaust system curve 2: Malossi cylinder, original camshaft, Malossi exhaust system with DB killer curve 3: Malossi cylinder, original camshaft, Malossi exhaust system with DB killer, Malossi air filter