EDR Performance ZX-6R 636 Supersport Engine Refresh - Your Engine core required

The most powerful ZX6R Supersport you can run!    The ZX6R/636 is the "new kid on the block" even though its been around longer than the R6, its really caught on the last few years in popularity!   EDR Performance has built well 100 Z6R/636 engines alone! 30+ years of building championship winning engines, Eric Dorn, our founder/engine builder has developed the most powerful and reliable ZX6R supersport legal build out there! Our Supersport engines are used around the world and won hundreds of championship, numerous national championships and destroyed track records everywhere. Our engines are used in race bikes, track day bikes, street bikes and even mini sprint/dwarf cars.  The EDR ZX-6R/636 Superport Engine package is built on YOUR supplied core/stock engine. if you wish to purchase an outright engine for us to use so you can keep yours, you will have to click the "no core supplied" option for the additional cost of a stock engine to start with, once completed with our supporting