The testing of this product has been going on for the last 2 years in off road motorcycling and in other aplications for the last 16 years.We have been blind track testing with over 100 riders. by blind what is meant is they have no information given and as such can only give feed back which is based on being on the bike on the day,of the 100 riders which were used to test the product a 100% feed back of positive statment ranging from just feels cleaner running through to being able to pull higher gear on corner exit.on dyno testing we found a 3% increase in BHP on a ktm sxf250.We highly recommened all riders use this product as the extra performance on race day will be very helpfull towards getting the race results you are looking for in enduro and motocross