Spark Plug 91975 Racing Plug - Integrated LKR (Long Reach)

【NGK R2556G-8 91975 Spark Plug Racing Plug, Integrated Type, LKR (Long Reach) for Race, Circuit, Maintenance, Repair, Parts】
・For racing and tuned engines!
・NGK racing spark plugs are special spark plugs designed for those who engage in racing or circuit driving, or those who have increased engine output through tuning.
・Choose the optimal racing spark plug for your beloved car and aim for the best performance.
Specifications
・Center electrode: Iridium
・Ground electrode: Platinum
・Part number: R2556G-8
・Stock number: 91975
・Terminal shape: Integrated
・Type: LKR (Long Reach)
・Heat range: 8
・Thread diameter: 12mm
・Thread reach: 26.5mm
・Hex size: 16mm
Precautions
*The heat range and firing end design of racing spark plugs must be selected according to the engine's tuning level and driving conditions. Please make your selection at your own discretion and responsibility. Please note that we will not be held responsible for any engine or plug problems that may arise as a result.
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*The image is for illustrative purposes only, and the design and specifications of the products shown are subject to change without notice. Thank you for your understanding.