Hop Up Kit, 208cc DuroMax, Stage 2 Our Price: $247.00 Engine Kit, GX390, 414cc, +.160 Honda Crank, 88mm Cast Flat-Top Our Price: $485.00 Hop Up Kit, 224cc Predator, Stage 3 Our Price: $331.00 Hop Up Kit, 208cc DuroMax, Stage 3 Our Price: $344.00 Stud Kit, Head: GX200, 6.5 OHV Clone, & 212 Predator Our Price: $20.68 Stud Kit, Head, DED Billet Heads, GX200/Clone & Animal Our Price: $24.99