not sure what there calling it nowadays, dune/play port? Stock cylinder bike, Im about to buy a pair of cylinders to send off, mine has ported cylinders on there now but not enough (back yard port job) looking for a real port job, raptor 700's where leaving me at little Sahara drags, mostly ride in sand and dirt, no slow trail stuff I'm always WO drifting or racing mostly playing I had a trinity stage 5 that had the power but was a ring eater so that sucked, looking to see who the top shops are for this kind of port work