Denso Iridium Power Spark Plug - IK22 - 5310 3.5" to 3.75" it uses all of the

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

Sizes 17 and 18″

Applications: Universal for all 12mm spark plugs

APPLICATIONS 42mm Fill Necks MAXIMUM PRESSURE (PSI) 19

and any application with older style RC

Denso Iridium Power Spark Plug - IK22 - 5310 3.5" to 3.75" it uses all of theSold 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