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Cometic Gasket is the world leader in custom multi-layer steel head gaskets for performance and motorsport engines. From off-the-shelf MLS for popular platforms to bespoke gaskets for race-only builds, Cometic seals everything from Honda B-series to LSX.
Unlock the full potential of your 2006-2011 Honda Civic Si with the Cometic MLS Head Gasket. Specifically engineered for the 86mm bore of the K-series engine, this .030" compressed thickness gasket offers a precise fit for high-performance builds. Cometic’s multi-layer stainless steel technology provides unmatched durability, ensuring that your cylinder head remains perfectly sealed even under the intense heat and pressure of high-RPM racing.
The Cometic MLS gasket is designed to withstand the shearing forces inherent in high-output engines, making it the ideal choice for both track-prepped race cars and aggressive street builds. By providing a consistent, reliable seal, this gasket helps maintain peak cylinder pressure, allowing your engine to perform at its best. Don't compromise on your build—choose the gasket that professional engine builders trust for their K-series projects. Find all your performance engine components and gaskets at GGCRACING.
| Brand | Cometic Gasket |
|---|---|
| Manufacturer part number | C4561-030 |
| GGC SKU | CGSC4561-030 |
| UPC / GTIN | 191070047535 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 17.5 × 8.3 × 0.25 in |
|---|---|
| Shipping weight | 0.6 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 2006-2011 | Honda | Civic | Si |
| 2008 | Honda | Civic | MUGEN Si |
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