Hop Up Kit, 224cc Predator, Stage 4 Our Price: $506.00 Hop Up Kit, 440 Duromax, Mud Motor Kit, Stage 4 Our Price: $1,281.00 Hop Up Kit, GX200 & 6.5 OHV Clone, Mud Motor Kit with Exhaust, Stage 3 Our Price: $556.00 Engine Kit, 218cc for Hemi Predator Our Price: $256.00 Header, RLV NRR5438, GX200, Mini Bike Down-Draft Style, Minimum Qty of 24 Our Price: $31.49 Header, RLV 3-Stage Pipe for Open & Modified GX200, 6.5 OHV, and 212 Predator Our Price: $38.99