If you're diving into the world of BMW tuning or just need a solid replacement part, this Cometic gasket is a smart choice. Designed specifically for the M54B25 and M54B30 engines, this multi-layer steel (MLS) head gasket measures .036 inches thick and has an 85mm bore. It's built to handle the heat and pressure that comes with spirited driving or track days, so you can count on it to keep your engine sealed tight.
The MLS design means it’s less likely to blow out under high-stress conditions compared to traditional gaskets. If you’re rebuilding your engine or just replacing a worn-out gasket, this one’s a no-brainer. Plus, it's a direct fit, so you won't have to worry about compatibility issues—just install and go.
Just keep in mind, this isn't a one-size-fits-all part. Make sure your engine is one of the M54 variants mentioned, and you’ll be good to go. Whether you're cruising down the highway or hitting the track, this gasket will help keep your engine running smoothly.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Vehicle Make/Model | Year | Trims |
|---|---|---|
| BMW 325Ci | 2001-2006 | Base |
| BMW 325i | 2001-2005 | Base |
| BMW 325xi | 2001-2005 | Base |
| BMW 525i | 2001-2003 | Base |
| BMW X5 | 2001-2006 | 3.0i |
| BMW X5 | 2001-2006 | 4.4i |
| BMW X5 | 2002-2003 | 4.6is |
| BMW X5 | 2002-2006 | 4.4i Top Line |
| BMW X5 | 2002-2006 | 4.4i Lujo |
| BMW X5 | 2003-2006 | 4.4i Formula 1 |
| BMW X5 | 2004-2006 | 4.8is |
| BMW Z3 | 2000-2002 | Roadster |
| BMW Z3 | 2000 | 2.8i |
| BMW Z3 | 2000 | 2.0i |
| BMW Z3 | 2000-2002 | Coupe |
| BMW Z3 | 2001-2002 | 2.2i |
| BMW Z3 | 2001-2002 | 3.0i |

Cometic is a company known for manufacturing gaskets and engine seals for different engines. They cater to various industries such as the marine, industrial, agricultural, and automotive sectors. The company was established back in 1989 and has since provided high performance sealing solutions worldwide.
Motorsport ParticipationThe company is considered as the leading supplier when it comes to gaskets and seals worldwide. They have provided high-performance gaskets in various racing events such as NASCAR, GNCC, and AMA. They helped top racing teams compete at the highest level by improving engine reliability.
Built for Extreme PerformanceWhether you are into endurance races at more than 220mph or setting the fastest drag records in 2000 hp top fuel race cars, Cometic has the right product for you. They design their products to withstand extreme temperatures and pressures. Hence, they are the brand chosen by the best in motorsports.
Best Value of ProductCometic has always been dedicated to providing high-quality products that provide customer satisfaction. They have always given their customers the best product at the most competitive price.
Quality in Every ProductThe company is housed in a 70,000 square foot facility with state-of-the-art manufacturing equipment that helps them create products that are superior compared to its competitors. Using premium materials, they are able to develop gaskets that provide proper seals every time.
Purchase Cometic Products at Vivid RacingIf you are in search of a high-quality gasket for your engine, then Cometic is the brand for you. Designed for OEM or high-performance applications, Cometic has got you covered. To know more about them, visit Vivid Racing and check out their list of products that fit your needs.