Hop Up Kit; GX240, GX270, 9/11hp OHV, & 301; Stage 2 Our Price: $186.00 Stud Kit, Side Cover with Solid Dowels: GX200, 6.5 OHV Clone, & 212 Predator Our Price: $20.23 Engine Kit, GX270, 292cc (+.160) Stroker, Q (1" Shaft) Our Price: $367.00 Engine Kit, 214cc, 2.225 (+.060) Stroker, 2.756 Bore Our Price: $245.00 Hop Up Kit, 212 Predator OHV (Non-Hemi), Stage 3 Our Price: $355.00 Hop Up Kit; GX340 to GX390, 420 Predator, & 13/15hp OHV; Stage 1 Our Price: $44.91