Hoca 4T Racing Kit for 150cc and 125cc GY6 4-stroke Scooters and Engines. This kit includes everything you need to increase overall speed, horsepower and torque. 

*You may need to modify your engine case to accommodate the larger cylinder.
 
Please see our Warranty & Returns Policy.

Includes High Performance:

• Chrome Racing Muffler with Mounting Kit
• Chrome Header Pipe
• PWK 30mm HP Carburetor
• Billet Drive Face
• Chrome Power Intake
• High-Angle Camshaft
• 1500 RPM Torque Yellow Drive Spring
• Performance Clutch
• Machined Variator (115mm)
• Big Bore Kit (61mm)
• Complete Performance Cylinder Head 
• Overall Height (cylinder): 90.3mm

United Motors, ZNEN, Verucci Viper 150GTX, JM Star Tomahawk II, X-Treme, Lifan, United Motors, Matrix 150, Verucci, Qingqi, TGB, Vento, Vento Phantom, SUNL, Various unlisted makes/models, Tank, Strada, Wildfire, Baron, Diamo, Boss, Roketa, Bravo, Terminator, Boreem Jia, Baja SC125, Baja, Honda, Schwinn, GY6 QMI/QMJ 152/157, Eton, Boreem (BMS), CFMoto, Freedom, Baja SC150, SYM, Kymco, Bashan, Avanti, Dotera, Baotian, BKM Sauron