That is exactly what happened to mine. Waste of 100 bucks.Same issue here. Running Brisk plugs and had a cylinder 8 misfire. Pulled the plug to find this:
12K miles on mine but getting ready to change them.How often should we be changing these on Boosted applications? Im definitely changing to ngk.
You haven't heard about Brisk's new variable heat range plugs? higher cylinder pressures push the insulator further up giving you the perfect heat range for the power you are making.... LOLSame issue here. Running Brisk plugs and had a cylinder 8 misfire. Pulled the plug to find this: