What is the advantage of a spiral wound exhaust gasket?

Spiral wound gaskets are known for their ability to create a strong, reliable seal. The construction allows them to conform to imperfect surfaces and withstand high temperatures and vibrations, which is ideal for motorcycle exhaust systems.

What Harley-Davidson engine types do these gaskets fit?

These gaskets are specifically designed for Harley-Davidson EVO and Twin Cam engine platforms. This covers a wide range of models produced over several decades.

Do these gaskets come with any hardware?

This product is for the gaskets only. Any necessary hardware, such as exhaust flange bolts or nuts, would need to be sourced separately if required for your installation.

Cometic Gasket Spiral Wound Exhaust Gasket C9540

Name: Cometic Harley-Davidson EVO, T/C. Hi Perf.Ex Gasket Spiral Wound #01-931 10-Pk
Brand: Cometic Gasket
Price: 98.63 USD
Availability: InStock

Cometic Harley-Davidson EVO, T/C. Hi Perf.Ex Gasket Spiral Wound #01-931 10-Pk

$98.63

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Cometic spiral wound exhaust gaskets for Harley-Davidson EVO and Twin Cam engines. High performance design for a solid seal.

Key Features

Fits a wide range of Harley-Davidson EVO and Twin Cam models.
Spiral wound construction with stainless steel outer casing and high-temp filler material.
Designed to create a strong seal for exhaust systems.
Suitable for high-temperature and high-vibration environments.
Pack includes 10 gaskets.
Direct fit replacement for many Harley-Davidson exhaust applications.

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Will this fit your vehicle?

Product Details

When you're rebuilding the exhaust system on your Harley-Davidson, getting a solid seal is crucial for performance and sound. These high-performance spiral wound exhaust gaskets from Cometic are designed to handle the demands of EVO and Twin Cam engines, ensuring a tight fit that keeps exhaust gases where they belong. They are a popular choice for riders looking to maintain or improve their exhaust system's integrity.

Cometic uses a spiral wound construction with a stainless steel outer casing and a graphite or high-temp filler material. This design allows the gasket to conform to the mating surfaces, creating a robust seal that can withstand the high temperatures and vibrations common in motorcycle exhaust applications. This particular gasket is designed for a variety of Harley-Davidson models, offering a reliable replacement for worn-out or damaged stock gaskets.

This pack includes ten gaskets, making it a convenient option if you're working on multiple bikes or need spares on hand. Proper installation is key to achieving the best seal, so always refer to your service manual for specific torque sequences and procedures.