Review on 🔥 Improved Denso 3461 Spark Plug: Achieve Better Engine Performance by Roberto Nastanovich

After a mini car, Motorwerks in Golden Valley, MN tried to tell me I needed a new head ($9,500) to fix my idle problem. I was mad. Purchased and installed these plugs, new vanos solenoids and a vacuum pump (total value of $350). My ride was like new, even the acceleration was better. Not to say that this is a silver bullet, but they helped me solve my problem. The only problem I found was that the size of the "nut" was different (my problem isn't the plug). The original connector was 14mm, the replacement was 9/16. A little extra research on my part might fix this problem.