NGK Iridium Stock Heat Spark Plugs *Box of 4* (BKR5EIX) - 6341 1" NPT Extreme Race 88A urethane is

Extreme Race 88A urethane is very stiff for almost total control of the engine movement

2015+ Dodge Challenger SRT Hellcat 6

anodized black and lastly laser engraved with the Torque Solution logo

Can be used with B or D series engines

MAT Process

NGK Iridium Stock Heat Spark Plugs *Box of 4* (BKR5EIX) - 6341 1" NPT Extreme Race 88A urethane is**SOLD AS SET OF 4** NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium