HKS M-Series Super Fire Racing Spark Plug Heat Range 9 - 1 Piece Performance Cooling Systems and small items into dedicated

and small items into dedicated sections so nothing slides around while you drive

Precision TIG-assembled and high-quality workmanship

Factory-calibrated sensor element - Maintains precise readings for optimal fuel timing and emissions control

Spring Rates: Front: 10kg/mm | Rear: 8kg/mm

HKS M-Series Super Fire Racing Spark Plug Heat Range 9 - 1 Piece Performance Cooling Systems and small items into dedicatedSpecifications 0. 6mm Iridium Alloy Center ElectrodeIridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability. Outer Electrode with Platinum ChipThe Outer Electrode incorporates a square platinum chip which improves urability, and when combined with the iridium center electrode boosts ignition performance. The Outer Electrode features a shortened tip design and tapered shape while maintaining