HKS PERFORMANCE SPARK PLUGS Ref: HKS-PSP
HKS performance spark plugs handle advanced levels of tuning and still offer easy start-up and smooth idling.
S-Series Super Fire Racing Spark Plugs Feature:
- 0.4mm diameter Iridium + Platinum plug electrode core
- U-shaped grooved electrode
We stock the S40i (now called M40i) which have a heat rating of 8 are suitable for most Impreza turbo applications (not 2.5L STi).
Supplied individually. Please select 4 for a set. |
