Review on Bosch Automotive 8180 PK Spark Plugs by Tim Roby

Identical to existing candles. Factory release so no hassle, no room for installation error. Properly dressed up to 17 feet as stated on packaging. The control system of the VW Jetta engine is absolutely flawless. Noticeable extra "knock" (These are the ONLY correct plugs for new Jettas at Revain. I bought a cheap kit that said it would fit, but the spacing was completely wrong which would have drastically impacted engine performance.)