
But what about post #14.....If you are tuned then use the M45XL's. Gap them at .026. The 40's are a stock heat range & would be a great upgrade if the car was NOT tuned. I have M45XL's in for over 6K miles with no problems. I have had no fouling and use the stock N purple tune the most. Hope this helps?
Best regards,
-Mike
Look up ^ at post #68 in this very thread.And I found this...
View attachment 16586
That's why I put this photo here.Look up ^ at post #68 in this very thread.
Already been explained that without a good set of feeler gauges as shown on the right you may as just be guessing the gap.
So - take HKS M45XL or 40XL ?.024 -.026 is generally fine for this colder plugs and what is recommended.![]()
So - take HKS M45XL or 40XL ?
My car is tuned as You know - it is everyday car with low milage but high fuel consumption because I like quick starts and fast driving.