Overview Reviews Product Description NGK Spark Plugs 3923 BPR8ESX2 Spark Plug fits 1974-1977, 1986-1989 Porsche 911 NGK Spark Plugs 3923 Product Videos Custom Field Product Reviews Write a Review Write a Review × NGK Spark Plugs NGK Spark Plugs 3923 BPR8ESX2 Spark Plug fits 1974-1977, 1986-1989 Porsche 911 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *