Name: Nickel Tip Spark Plug BKR6EK for Porsche 911 Turbo(2003) ,Porsche Roadster ,Porsche Roadster SThread size:14mmThread Pitch:1.25mmSeat Type:GasketResistor:YesReach:19mmHex Size:16mmIgnition Position:2.5 mmGap:0.9 mmCenter electrode:Nickel-tipped ElectrodeGround electrode: Nickel-tipped Electrode