Review on 🔥 NGK DPR8EA-9 Spark Plug: Exceptional Performance for Optimal Engine Efficiency - 1 Piece by Kendrick Dooley

Great spark plugs, just what my bike needs. Candles are of very good quality, the gap is already set correctly. They are all supplied as a cylindrical cardboard tube over the electrode to protect the connectors in the box. This way you don't have to worry about your box falling and breaking the porcelain around the electrode. Very clean, crisp threads and easy to fit into motorcycle heads. Pass it over the top of the fork and use it to push the fork back into place. If you cross the threads when inserting, the rubber tube will slip around the stopper. With a ratchet, on the other hand, you could tighten further at this point and destroy the internal thread in the cylinder head. Update - July 2015, it's been a few years since I replaced these plugs. The motorcycle is still running. Excellent plugs. After the first swap, my bike had a measurable increase and a sense of horsepower. Certainly not a drastic increase, but I did find that these plugs really got my bike going with some momentum. Chris Eastern, North Carolina.