Denso Iridium Power Spark Plug - IK22 - 5310 3.5" to 3.75" Sizes 17 and 18″

Sizes 17 and 18″

it uses all of the stock mounting points and is compatible with the factory cat pipe as well as the previously released COBB High Flow Cat Pipe

Increased fluid capacity and superior heat dissipation

Fitment: For EJ20/25 engine that wants to use a JDM long runner manifold

Denso Iridium Power Spark Plug - IK22 - 5310 3.5" to 3.75" Sizes 17 and 18″Sold Per Plug Spark Plug Stock # 5310 P N IK22 Mfr Label = Spark Plug Iridium Power Resistance = 5000. 0 Ground Electrode Tip Design = Tapercut, U Groove Ground Configuration = Standard Ground Electrode Core Material = Nickel Center Electrode Core Material = Copper Center Electrode Tip Material = Iridium Pre Gap Size = 1. 1 mm Ground Electrode Quantity = 1 Hex Size = 16. 0 mm Manufacturer Heat Range = 22 Seat Type = Flat Reach = 19. 00 mm Thread