Brisk Iridium Performance P24 RR17BYIR-3 Spark PlugP24 RR17BYIR 3 Iridium Yttrium Brisk Performance Spark Plugs Brisk SKU P24 RR17BYIR 3 Parameters: Thread Diameter 14mm Thread Reach 25mm 1" Hexagon 16mm 5 8" Seat Type Tapered Design Iridum Yttirum Resistor Yes Projected Yes Heat Range 17 Brisk P24 RR17BYIR 3 Replaces: With very long lifespan, the P range Brisk spark plugs are the most modern design to fit modern highly efficient and stressed engines. The Iridium core center electrode is surrounded by

P29 ER17YIR-1 Iridium Yttrium Brisk Performance Spark Plugs

DR12YC Brisk Racing Super Spark Plug

Resistor - Yes

Brisk SKU  -  L10SL

Hexagon 21mm-13/16

5 mm Silver Fine Wire Center Electrode - Low ignition voltage requirements (easier for spark to jump over) - Reduces stress and wear on your coil and other ignition components - Fires properly even if partially fouled

6L 3-Valve Ford engines

Brisk SKU  -  AR08GS

MR08GS Brisk Extra Turbo Racing Spark Plug

In some instances an upgrade to the ignition coil should be made to maximize benefits of racing plugs

DOR10DS Brisk Racing Spark Plugs Extra Turbo Supercharged

Brisk XOR12YS-1 Replaces: