Stage 2 Performance Kit 4T; CSC Go!, QMB139 

Takes your 50cc QMB139 to 72cc

Kit includes Skus:

0500-1071 SCOOTERWORKS LOW MOUNT EXHAUST; QMB139

1100-1439 BLUE LINE BIG BORE KIT W/ HEAD 4T (72CC, 64MM VALVES); QMB13

1200-1051 6g NCY ROLLERS (16X13); QMB139, TAO TAO, CSC GO.

1100-1361 BLUE LINE CARBURETOR (CVK,19MM); QMB139

0900-1005 NCY PERFORMANCE CDI (AC, 6 PIN); GY6, QMB139

1300-1110 PERFORMANCE FOAM POD AIR FILTER 38MM

Jetkh1 95 JET (KEIHIN PB STYLE CARBURETORS); GENUINE

1100-1256 NCY EGR BLOCK-OFF PLATE; GY6

0500-1008 NCY EXHAUST GASKET (STEEL); GY6

1200-1053 1000 rpm NCY COMPRESSION SPRING (PERFORMANCE); QMB139

1200-1056 NCY PRESSURE PLATE; QMB139

1200-1161 NCY, DRIVE FACE ASSEMBLY (ALUMINUM); QMB139

1200-1050 NCY PULLEY (GOLDEN); QMB139

Not legal for use in California on pollution controlled vehicles. Check local laws before installing.