Cometic 06-09 Honda Civic Si 86mm MLS .030in Headgasket

Cometic 06-09 Honda Civic Si 86mm MLS .030in Headgasket

Marsoni

M251S

$91.92

Get it in 3 business days with 1 day shipping. Friday, May 29

Cometic 06-09 Honda Civic Si 86mm MLS .030in HeadgasketComprised of multiple embossed layers of stainless steel with the outer layers utilizing a Viton rubber coating. Compressed operating thickness is 0. 030". Cometic MLS (Multi Layer Steel) Head Gaskets provide maximum sealing performance for todays high output engines and require no sealants. MLS gaskets are ideal for both aluminum heads to aluminum blocks and aluminum heads to cast iron blocks. They can withstand the shearing force created by the two

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Didn't really believe the hype. Did a little research and watched Project Farm and decided to try. Im not a snake oil guy....but I will say my 2013 common rail TDI is quieter and I get a tad more fuel mileage. Does it pay for itself? Well, it does get better mpg, but I feel the reduction in noise most likely relates to less wear and tear and thats good enough for me. Im only using 1oz per fill up (about 14 gallons) so it lasts a very long time. I get 40mpg and im not light footed.

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Reviewed in the United States on April 2, 2026

Verified Purchase

James Jay

Lowell, US

★★★★★ 5

It's a spark plug

What i needwd

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on May 27, 2026

Verified Purchase

Charlottesville, US