Check out what one of our own had to say in a recent article put out by PRI over ignition systems.
Part Number | Type | Thread | Reach | Hexagon | Seat | Design | Resistor | Projected |
---|---|---|---|---|---|---|---|---|
HOR12LGS Spark Plug | Premium Racing | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Premium LGS | yes | yes |
HOR14LGS Spark Plug | Premium Racing | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Premium LGS | yes | yes |
HOR15LGS Spark Plug | Premium Racing | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Premium LGS | yes | yes |
HOR15YTE Spark Plug | BRISK Yttrium Perf. | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | YTE | yes | yes |
HOR17LGS Spark Plug | Premium Racing | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Premium LGS | yes | yes |
HOR17YTE-1 Spark Plug | BRISK Yttrium Perf. | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | YTE | yes | yes |
HOR17YTE-3 | BRISK Yttrium Perf. | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | YTE | yes | yes |
HR14YS Spark Plug | Silver Racing | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Silver Racing | yes | yes |
HR15YS Spark Plug | Silver Racing | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Silver Racing | yes | yes |
HR17C Spark Plug | BRISK Super | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | Copper Alloy Electrode | yes | no |
HR17YTE Spark Plug | BRISK Yttrium Perf. | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | YTE | yes | yes |
HR17YTE-1 Spark Plug | BRISK Yttrium Perf. | 14mm | 12.7mm-1/2" | 16mm-5/8" | tapered | YTE | yes | yes |
JR17 Spark Plug | BRISK Super | 14mm | 9.5mm- 3/8" | 21mm-13/16" | gasket | Copper Alloy Electrode | yes | no |
JR19 Spark Plug | BRISK Super | 14mm | 9.5mm- 3/8" | 21mm-13/16" | gasket | Copper Alloy Electrode | yes | no |
K17C Spark Plug | BRISK Super | 14mm | 9.5mm- 3/8" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | no |
K19 Spark Plug | BRISK Super | 14mm | 9.5mm- 3/8" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | no |
KR17YC Spark Plug | BRISK Super | 14mm | 9.5mm- 3/8" | 21mm-13/16" | gasket | Copper Alloy Electrode | yes | yes |
KR19YC Spark Plug | BRISK Super | 14mm | 9.5mm- 3/8" | 21mm-13/16" | gasket | Copper Alloy Electrode | yes | yes |
L08C Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | no |
L08SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | no |
L08YS Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | yes |
L08ZS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Multi-Spark Racing | no | yes |
L10S Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | no |
L10S TM Racing Spark Plug | TM Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | no |
L10SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | no |
L10ZS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Multi-Spark Racing | no | yes |
L11S Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | semi |
L11SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | no | semi |
L14C Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | no |
L14YC Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | yes |
L15C Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | no |
L15YC Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | yes |
L17C Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | no |
L17YC Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | no | yes |
LOR12LGS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Premium LGS | yes | yes |
LOR14LGS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Premium LGS | yes | yes |
LOR15LGS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Premium LGS | yes | yes |
LOR17LGS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Premium LGS | yes | yes |
LR08SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | no |
LR08ZS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Multi-Spark Racing | yes | yes |
LR10S Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | no |
LR10SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | no |
LR10ZS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Multi-Spark Racing | yes | yes |
LR11S Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | no |
LR11SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | semi |
LR12SL Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | semi |
LR12YS Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | yes |
LR12ZS Spark Plug | Premium Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Multi-Spark Racing | yes | yes |
LR14C Spark Plug | BRISK Super | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Copper Alloy Electrode | yes | no |
LR14S Spark Plug | Silver Racing | 14mm | 19mm-3/4" | 21mm-13/16" | gasket | Silver Racing | yes | no |