Review on NGK 1402 Spark Plug by Jorge Eckstein

This helped improve engine performance and clarity after installation. It was setup related and the dealer cost was insane! So we did it ourselves. It took about an hour because the turbocharger intercooler had to be removed from the top of the engine first, but it wasn't too bad. Everything else was a lot easier than changing the spark plugs in most other cars I've done. They should be pre-sealed but we checked to make sure. All were in perfect condition. Remember to bring a tube of Di-Electric grease for all electrical connections and coil packs. This will help and make things easier next time you change them.