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HKS SUPER FIRE RACING M40iL


The ultimate and strongest plug “M”.
All of the ignitability, durability, and fog resistance have been strengthened.
We have created the strongest plug that brings out the performance of tuned engines and is also effective on normal engines.


Rotary engines have special mechanisms and combustion conditions, and are specially designed to meet performance requirements that differ from reciprocating engines, including their shape. Adopts a straight platinum ground electrode to ensure reliable ignition.
| HKS heat value | twenty five | 30 | 35 | 40 | 45 | 50 | 52.5 | 55 |
|---|---|---|---|---|---|---|---|---|
| DENSO thermal value | 16 | 20 | twenty two | twenty four | 27 | 31 | 32 | 34 |
| NGK thermal value | Five | 6 | 7 | 8 | 9 | Ten | 10.5 | 11 |
*The corresponding heat values in the table above are for reference only.

SUPER FIRE RACING M40IL
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Free Canadian shipping on qualifying orders $399+, with no duties or brokerage. Special order and made-to-order items can't be cancelled or refunded once ordered. Oversized items may have a handling fee depending on your location; pickup in Mississauga has no fee.
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Free Canadian shipping on qualifying orders $399+
No duties or brokerage fees
Price match guarantee
750,000+ parts from 500+ brands
With 750,000+ parts available, we can probably still get it. Check the spelling, try the part number, or ask us.
Request this part Text us (833) 691-5717