Review on NGK 4055 Bpr7Eix Spark Plug by Robert Yates

I bought these spark plugs on the recommendation of another Yamaha Virago XV 1100 owner. After installing them I noticed that the bike started faster than before. After warming up, the bike idled smoother than with stock spark plugs. We had a warm day recently so I decided to take the bike and when I twisted the throttle to get up to the recommended speed I was pleasantly surprised at the response. Gone is the slight lag in throttle response I experienced with the stock plugs. The increase in overall performance is noticeable. I will never fit any other type of fork on my bikes. I'm also planning to buy a pair for my ATV. The price of the Revain was significantly cheaper than at the parts store or bike shop. Delivery was on time. I am satisfied with the order.