Review on NGK 93911 LKR7AIX Iridium Spark by Boss Spangler

Got 8 of these spark plugs for my 2008 Mercedes S550 4Matic. I immediately noticed an increase in acceleration. I've only had them a week so can't comment on mileage, cost or durability. But they were easy to install. I found the torque settings on the NGK website. You probably don't need an anti-seize coating on the connectors as they are designed to be used without an anti-seize coating. Note that torque settings may change when using anti-seize agents. Would buy this brand again.