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| Manufacturer | Funk Motorsport |
|---|---|
| Product Type | Turbo Blanket / Turbo Heat Shield |
| Vehicle Compatibility | BMW G21 Alpina B3 (S58 twin-turbo engine) |
| Construction | 4-layer thermal insulation |
| Available Finishes | Titanium, Carbon Fibre |
| Application | Twin-turbocharger turbine housing heat management |
The Funk Motorsport G21 Alpina B3 S58 Turbo Blanket is purpose-built for owners seeking to control under-bonnet temperatures and protect vital engine bay components on the BMW G21 Alpina B3. Designed specifically for the S58 twin-turbo engine platform, this turbo blanket supports both daily-driven and performance-tuned vehicles, helping to maintain reliability and efficiency under demanding conditions.
This turbo blanket is engineered to insulate the turbine housings of the S58 twin-turbo system. By containing radiant heat within the turbochargers, it helps reduce the transfer of heat to surrounding wiring, hoses, and plastics. This is especially valuable for the G21 Alpina B3, where high power output and compact engine bays can lead to significant heat soak issues, risking both performance and component longevity.
BMW G21 Alpina B3 owners often encounter elevated engine bay temperatures during spirited road use, track days, or when running increased boost. Excessive heat can degrade plastics, wiring, and sensors, and may contribute to inconsistent turbo response. The Funk Motorsport turbo blanket addresses these issues by:
This product is ideal for enthusiasts who have invested in tuning, track preparation, or simply want to safeguard their high-performance S58 engine from avoidable heat damage.
The Funk Motorsport G21 Alpina B3 S58 Turbo Blanket features a proprietary 4-layer construction, designed to provide robust thermal insulation for the S58’s demanding environment. Buyers can choose between Titanium and Carbon Fibre finishes, both offering the same high level of heat resistance and durability. The blanket’s removable design is a unique advantage for those who perform regular turbo maintenance or upgrades.
This turbo blanket is tailored to fit the S58 twin-turbo system in the BMW G21 Alpina B3. For best results, ensure the engine and turbo are completely cool before installation. While experienced enthusiasts may install the blanket themselves, professional installation is recommended for optimal fitment and safety. Always inspect the blanket after high-heat use and during routine maintenance to ensure continued protection.
For UK customers, prices include VAT, customs and delivery unless checkout states otherwise. For customers outside the UK, local customs and taxes remain your responsibility, and shipping is shown at checkout. If a shipping option is not available, email us and we will prepare a tailored quote.
Many of the products we sell are made to order, imported or custom built, so a lead time may apply. If you need a part urgently, contact us before ordering and we will confirm the expected delivery timeframe and process.
It helps contain heat within the turbochargers, reducing under-bonnet temperatures and protecting sensitive engine bay components from heat damage.
This specific blanket is designed for the G21 Alpina B3 with the S58 engine. For other models or S58-equipped vehicles, confirm fitment before purchase or explore Funk Motorsport’s broader range.
Installation is possible for those familiar with turbo systems, but professional fitting is recommended for best results and safety.
The blanket is designed to be durable and removable. Inspect periodically for wear, especially after high-heat use, and remove for turbo maintenance as needed.
Both finishes offer the same thermal protection. The choice is based on your preferred engine bay appearance and build style.
This blanket is tailored for the factory S58 twin-turbo setup in the G21 Alpina B3. For aftermarket turbos, check sizing and fitment requirements before purchase.
Check dimensions, mounting points, clearance and any wiring or hose requirements against your setup before ordering.
Send us your vehicle, year, current setup and any fitting date, event, trip or deadline before ordering. We will help check fitment, product choice and timing.
