BMW 440i Turbo Blanket B58 engine

BMW 440i Turbo Blanket B58 engine

Here at Funk Motorsport, we are known for our industry leading turbo blankets! Improve performance, protection and reliability with our durable Funk Motorsport BMW 440i B58 engine Turbo blanket.

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From: £235.00

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Available in Titanium, Carbon Fibre and Inside Out finish, our turbo blankets feature our signature Funk Motorsport 4 layer construction providing up to 3x more thermal protection than competitor blankets on the market. Our Funk Motorsport turbo blankets are also the only blankets in the world that can be removed for routine turbo maintenance with our ground-breaking new blanket technology! Say goodbye to single use turbo blankets!


Improve gas flow and increase performance with our BMW 440i B58 engine turbo blanket. Our Funk Motorsport BMW turbo jackets work to insulate the hot side of the turbo and retain the heat within the exhaust gases themselves. Hotter gases accelerate faster leading to them leaving the system sooner improving spool up and throttle response. Insulating the hot side of your turbo also helps to lower the amount of heat from the turbo that dissipates into the engine bay and intake pipework. A cooler intake results in higher performance and more consistent power figures over time.


A turbo is an absolute furnace within the engine bay. Excess heat produced by the turbo can cause devastation to surrounding sensitive components. Protect anything from oil lines, coolant lines and even bodywork positioned close to the turbo from the dangers of excess heat.


Insulate your BMW 440i B58 engine turbo to reduce excess heat within your engine bay. Reducing the overall temperature of the engine bay will improve the reliability of electronics, and also help improve the temperature of coolant, fuel and oil lines. From a reliability standpoint, the benefits of a turbo blanket are endless.

While we are on the topic of reliability, what makes a Funk Motorsport turbo blanket the most reliable and durable turbo blanket on the market?

– Specifically developed thread construction to allow for exceptional durability when removal is necessary for routine turbo maintenance. Our new fireproof ultra-high temperature Stainless Steel thread is around 1mm in diameter and can now remain highly durable with temperatures in excess of 1300°C.

– New, thicker internal heat lagging insulation to provide up to 3x improved heat reduction. This insulation wool is created from a ceramic silica complex matting to improve durability over prolonged heat cycles, as well as insulation quantities.

– 4-layer construction for improved reliability.

– Uprated external Carbon Fibre twill and Titanium twill for an improved aesthetic and more durable finish.

– ROHS tested and approved to ensure compliance and desired parameters are reached within our material selection.

You’re in safe hands with a Funk Motorsport Mk3. Turbo Blanket.
Note of caution:

This turbo blanket is not flammable. However, if any flammable fluids are introduced into close proximity of the blanket, the blanket could become a suitable ignition source for a flame to be produced. Please ensure that all necessary precautions are taken in regards to the appropriate maintenance of all oil and fuel lines and fittings surrounding the turbo charger and fuel injection system. Funk Motorsport take no responsibility for fluid contamination our products.

Withstands temperatures of up to 1300 degrees C while offering temperature reductions of up to 90%.

Please note: Heat blankets will smoke on initial heat cycles. This is normal. Smoke will disappear after initial heat cycles. Please ensure you read the turbo blanket product guide provided before application.


Most frequent questions and answers

Turbo Blankets are designed to reduce excess heat within your engine bay. This heat will typically increase your air intake temperatures and therefore decrease overall performance. A lower engine bay temperature will improve the reliability of electronics and help improve the temperature of fuel, oil and coolant lines. Turbo blankets will also help improve gas flow speed. As we know, hotter gases accelerate faster than cooler gases and by insulating the turbo, the excess heat energy is stored within the gas, helping to accelerate the gas out of the system faster. Although some people believe using a blanket may cause harm to the turbo, this is a untrue and a common myth. The blanket will in fact help shield oil feed lines reducing their internal temperatures allowing the turbo to run more efficiently.

Yes! Here at Funk we carry blankets for a huge majority of turbo makes and models. Unsure of the blanket that you need? Don’t hesitate to get in touch. If you happen to have a very specific turbo that we do not appear to cater for online, we can create custom blankets in house for your application.

Our blankets are available in three finishes. Titanium, Carbon Fibre and our new Inside Out Finish. Although they all look different, they are all just as effective at protecting your turbo. In the case of our Titanium and Carbon Fibre turbo blankets, they share the same 4 layer construction with our signature Funk Motorsport insulation and a different top layer of Carbon or Titanium for aesthetics only. Our Inside Out blanket however, has an entirely different function. With the internal material also mirrored on the outside, our Inside Out blankets are designed to be in direct contact with a heat source on both the inside and outside of the blanket. This is necessary in applications when the turbo itself is positioned close to a manifold or similar where the external face of the blanket will be in direct contact with a heat source. Unsure of which finish best suits your application? Get in touch!

All of our heat blankets feature our Mk3. Industry leading construction for ultimate performance and durability. Made up of 4 unique layers, including our signature Funk Motorsport insulation, our blankets outperform other blankets on the market by reducing temperatures by up to 90% and hugely reducing general temperatures within the engine bay. Having listened to the needs of the market, our blankets have been designed to be removed for routine turbo maintenance which was previously unseen in the turbo blanket market. So if you are looking for the best performing, most durable heat blanket on the market – we’ve got you covered!