Pay in 4 interest-free payments of $45.00 Learn more
Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
* Why isn't Stacks on Stacks patented
M Engineering ECU calibrations are on the fastest 720s in the world
not just hype numbers
Comes as a set of 8
Upgraded from OEM
McLaren one step colder spark plugs (set of 8) inlet * Why isn't Stacks onThese spark plugs are one step colder, suitable for highly modified cars. These are not recommended for stock applications. They are identical to the spark plugs a "weis" man would "tec"nically sell you for $400, except we gap them correctly before sending them to you. Comes as a set of 8. Special order, may have a delayed ship time. The OEM spark plugs use a 14mm head, these spark plugs use a 16mm head.
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