HP Copper Spark Plug; 1 Heat Range Colder Than PN[579]; 0.032 in. Gap; 5/8 in. Hex Size; 1 in. Reach; Resistor; Tapered Seat Type; 1.25mm Thread Pitch; 14mm Thread Size; Each;
- Copper Core Is A Better Conductor Than Iridium Or Platinum
- Copper Dissipates Heat Much Better Than Other Materials
- C – Cut Design Un-shrouds The Spark Kernel For Better Burn
- Unlike Iridium Or Platinum Plugs – The HP Plugs Are Gapable
- Machined Rolled Threads For Precise Thread Engagement
- One Step Colder Than Stock
- Whether Using On Street/Strip The HP Copper Core Plugs Deliver!