Engine › EJK 3.5 YAMAHA Image 1 of 1 EJK 3.5 YAMAHA $283.95 Sold Out No computer neededNo dyno requiredQuick "plug and play" installation, initial settings are all preset based on make/modelFull range tunability, does not interfere with stock ECUSimple push button adjustment interface2 year warrantyNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available Sold Out Added! No computer neededNo dyno requiredQuick "plug and play" installation, initial settings are all preset based on make/modelFull range tunability, does not interfere with stock ECUSimple push button adjustment interface2 year warrantyNot legal for use in California on pollution controlled vehicles, race use only in California - waiver available