All the top racers use the 2015. It's not a coincidence. Use a 2015 with the 41015 or 41016 header. You don't really need anything else.
Novarossi America, Serpent America, TOP Engines, Matrix Racing Tires, ProCircuit, Titan/Blitz Products, Xceed Products, KO Propo, Enneti, ArrowMax