Funk Motorsport Borg Warner K04-20 Turbo Blanket – Borgwarner Turbo Heat Shield

Turbo Heat Management for Borg Warner K04-20 Applications

The Funk Motorsport Borg Warner K04-20 Turbo Blanket is purpose-built for owners and tuners running the popular Borg Warner K04-20 turbocharger. This turbo heat shield is designed to address the real-world challenges of engine bay heat, offering targeted protection for high-performance, track, and demanding road builds where thermal management is critical for reliability and efficiency.

How the Funk Motorsport K04-20 Turbo Blanket Works

Turbochargers generate intense heat, which can soak into surrounding components, wiring, and intake systems. The Funk Motorsport K04-20 Turbo Blanket insulates the turbine housing, helping to contain radiant heat within the turbo itself. This reduces under-bonnet temperatures, minimises heat soak to nearby parts, and supports more consistent turbocharger efficiency—especially under sustained load or repeated boost cycles.

Where This Turbo Blanket Makes a Difference

This product is ideal for:

• Enthusiasts seeking to protect engine bay components from heat damage
• Track-day and motorsport builds where repeated high-temperature cycles are common
• Road and off-road vehicles with limited airflow or tightly packaged engine bays
• Anyone looking to support turbo reliability and intake air temperature control

By maintaining a cooler engine bay, the blanket helps prevent premature wear of hoses, wiring, and sensors, and can contribute to safer, more reliable operation in tuned or modified vehicles.

Key Benefits for Borg Warner K04-20 Owners

• Engineered specifically for the Borg Warner K04-20 turbocharger
• Signature Funk Motorsport four-layer construction for robust thermal insulation
• Available in Titanium, Carbon Fibre, and Inside Out finishes to suit your build
• Removable design allows for routine turbo maintenance without replacing the blanket
• Helps reduce heat soak and protect sensitive engine bay components
• Supports consistent turbocharger performance during demanding use

Construction and Material Details

Funk Motorsport’s four-layer construction is designed to provide enhanced thermal insulation compared to standard turbo blankets. The choice of premium finishes—Titanium for classic durability, Carbon Fibre for a modern look, or Inside Out for a distinctive appearance—allows you to match your build’s style and requirements. The removable design is particularly useful for those who regularly service or inspect their turbocharger.

Installation and Usage Notes

This turbo blanket is designed for direct fitment to the Borg Warner K04-20 turbocharger. Installation is straightforward with basic hand tools. For best results, ensure the blanket is securely fastened and does not interfere with moving parts. Routine inspection after high-heat cycles is recommended, especially in motorsport or heavy-duty applications. The removable design makes servicing your turbo easier and more cost-effective.

Technical Specifications

Frequently Asked Questions

What problem does the Funk Motorsport K04-20 Turbo Blanket solve?

It helps prevent heat from the turbocharger from damaging nearby components, reducing the risk of heat soak and supporting more reliable engine operation.

Is this blanket compatible with other turbo models?

This model is specifically engineered for the Borg Warner K04-20 turbocharger. For other fitments, refer to the Funk Motorsport range.

How does the removable design benefit maintenance?

The blanket can be removed and reinstalled, allowing for easy access to the turbo during servicing without the need for a replacement blanket.

Which finish should I choose?

Choose Titanium for classic heat resistance, Carbon Fibre for a modern look, or Inside Out for a unique aesthetic—each provides the same thermal protection.

Does the blanket require ongoing maintenance?

Routine inspection is recommended, especially after track use or high-heat cycles, but the blanket is designed for long-term durability.

Who should consider this product?

Owners of vehicles equipped with the Borg Warner K04-20 turbocharger who want to manage engine bay heat, protect components, and support turbo reliability—especially in performance or tuned applications.