HP Copper Spark Plug; 1 Piece C-Cut Design; 1 Range Colder Than Stock; Each;
- One Piece Design
- Wont Break Off In Head During Removal Like Two Piece Designs
- Copper Core Is A Better Conductor Than Iridium Or Platinum Plugs
- Copper Dissipates Heat Much Better Than Other Materials
- C-Cut Design Un-Shrouds The Spark Kernel For A Better Burn
- Unlike Iridium Or Platinum Plugs; The Accel Hp Plugs Are Gapable
- Machine Rolled Threads For Precise Thread Engagement
- One Step Colder Than Stock