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Turbo Blankets
Silicone Coated Turbo Blankets
Kool Wrap Turbo Blankets keep the exhaust heat inside the Turbo Exhaust housing and away from hoses, cables, fuel and brake lines, and other heat sensitive components. They can also help to protect workers or mechanics working close to the Turbocharger. The Kool Wrap Silicone coated Turbo Blanket features 12mm thick internal silica insulation covered in a hard wearing silicone coated outer cover. The cover is washable and resists fuel and oil spills. The blanket also features external heat resistant stitching. Available in a wide range of sizes.
Shop NowTitanium Basalt Turbo Blankets
The Kool Wrap Titanium Basalt Turbo Blanket is designed for the highest temperature Turbochargers and has a heat rating of over 1,000°C. It features 12mm thick internal silica insulation and a Titanium Basalt woven outer cover. External Kevlar stitching keeps the stitched seam away from the hot turbo housing. Ideal for all applications but especially high horsepower engines. Available in a wide range of sizes.
Shop NowCarbon Fibre Turbo Blanket
Kool Wrap has just released a limited range of their ultra high temperature rated Carbon Fibre Turbo Blankets. The new Black Carbon Fibre Turbo Blankets are made for the highest temperature rated Turbocharger applications. Carbon fibre is a composite material frequently used in motorsport. It has incredible physical properties including its ability to withstand very high temperatures yet continue to keep is high strength physical properties. And it also looks great. Only available in our T3, T4 and T6 sizes.
Shop NowA turbo blanket holds heat inside the turbine housing instead of letting it radiate across the engine bay. Hoses, wiring, the intake and intercooler piping all run cooler, and heat soak drops. Choose yours by frame size, wastegate type and the outer material that suits your conditions.
Buy Turbo Blankets | Turbo Blankets For Sale
Turbo blankets help contain exhaust heat at the turbine housing, reducing radiant heat across the engine bay and helping protect nearby components. Kool Wrap’s range includes titanium basalt, silicone coated and carbon fibre turbo blankets for performance cars, 4WDs, trucks, marine engines and motorsport applications.
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How to choose a turbo blanket
You need to make three decisions: the frame size of your turbine housing, whether it has an internal or external wastegate, and the outer material that suits your conditions. Get the size right first. A blanket that fits properly sits snug against the housing with no gaps.
Turbo blanket sizing guide: T2, T3, T4 and T6
| Frame size | Turbos listed on our product pages | Available in |
|---|---|---|
| T2 | Small-frame turbos. Check your housing against the product photos and dimensions. | Titanium basalt, silicone coated, internal wastegate versions |
| T3 | T25, T28, GT25, GT30, GT32 and GT35 with an external wastegate | Titanium basalt, silicone coated, carbon fibre |
| T3 internal wastegate | T3 housings with an integral wastegate, including most XR6T Barra Falcons | Titanium basalt, silicone coated |
| T4 | T4, GT40, GT42, GT55, T66, T67 and T76 (turbine housing about 19 to 20cm across) | Titanium basalt, silicone coated, carbon fibre |
| T6 | T6, T5, GT55, GT40, HX52, HT60 and T88 | Titanium basalt, silicone coated, carbon fibre |
Some turbo models appear under more than one size because manufacturers use different housings on the same model. Always measure your turbine housing before you order. Our guide on how to measure your turbo for a blanket shows you how.
We also stock vehicle-specific blankets for the Subaru WRX (EJ20 and EJ25), VW and Audi K04, Toyota LandCruiser 1HDT, Mitsubishi Evo X and GT25 to GT28 turbos.
Titanium basalt vs silicone coated vs carbon fibre
| Blanket | Outer layer | Inside | Stated heat rating | Strength | Best for |
|---|---|---|---|---|---|
| Titanium basalt | Woven titanium basalt | 12mm silica insulation, stainless steel mesh inner, Kevlar-reinforced stitching | Over 1,000°C continuous | Maximum heat containment | Street performance, towing, motorsport |
| Silicone coated | Silicone-coated fibreglass | 12mm silica insulation, stainless steel mesh inner, Kevlar stitching | Rated for turbine housing temperatures | Resists fuel and oil | Diesel 4WDs, trucks, oily or dusty engine bays |
| Carbon fibre | Carbon fibre composite | High-temperature silica core, stainless steel mesh | Ultra-high temperature rated | Motorsport finish and strength | Race and show cars |
| Industrial and marine | Silicone coated or titanium basalt, made for a specific engine | Insulated core made to suit the engine | Made to suit the engine | Engine-specific fit | Cummins, CAT, Scania and Holset applications |
Choose titanium basalt turbo blankets when heat is the main problem. Choose silicone coated turbo blankets where oil mist, fuel or dirt could reach the blanket. Choose carbon fibre turbo blankets for a motorsport look.
Internal vs external wastegate
An internal wastegate is built into the turbine housing, with its actuator arm on the outside. An external wastegate is a separate unit on the exhaust manifold. Our standard T3 blanket is made for external wastegate housings. If your turbine housing has a built-in wastegate, choose the internal wastegate version. We make these in T2 and T3 sizes in titanium basalt and silicone coated. For other sizes with an internal wastegate, call us before you order.
Fitting and care
Fit the blanket with the engine cold. Position it over the turbine housing, then hook the stainless steel mounting springs across so the blanket sits tight with no gaps. Check it clears the wastegate actuator, sensors and oil lines. Expect some smoke on the first heat cycle as the binders burn off. Keep the blanket clean of oil and fuel, because glass-fibre insulation can absorb them. Our turbo blanket fitting guide covers each step.
Truck, marine and mining turbo blankets
Our industrial and marine turbo blankets are built for specific engines, including the Cummins QSM11 and 12 to 19 litre engines, CAT 6.6, C3056E, C12 and C15, Scania P410 and Holset HX55i. Some are made to order. If your turbo isn’t listed, send us your measurements and photos, or call 1300 44 33 34. We can modify a standard design or custom make a blanket for larger turbochargers.
Turbo blanket guides
- What does a turbo blanket do? How it works, what it protects and its limits.
- How to measure your turbo for a turbo blanket, including wastegate checks.
- How to fit a turbo blanket, from springs to first start.
Turbo blanket FAQs
Which turbo blanket size do I need?
Match the blanket to your turbine housing frame size: T2, T3, T4 or T6. Model names overlap between sizes, so measure the housing and compare it with the product photos and dimensions. If you’re unsure, send us your measurements and photos, or call 1300 44 33 34.
Will a turbo blanket fit a turbo with an internal wastegate?
Yes, if you choose the internal wastegate version. We make internal wastegate blankets in T2 and T3 sizes, in titanium basalt and silicone coated. Our standard T3 blanket is made for external wastegate housings, so check the wastegate type before you order.
How much heat does a turbo blanket stop?
A turbo blanket holds heat inside the turbine housing, so the blanket surface and the engine bay around it run much cooler than a bare housing. The exact drop depends on your engine, load and airflow, so we don’t quote a single percentage. Our titanium basalt blankets are rated over 1,000°C continuous.
Is it normal for a new turbo blanket to smoke?
Yes. Most fibreglass and basalt insulation products give off some smoke on the first heat cycle as binders burn off. It is short-lived and does no damage. Smoke that continues usually means oil or fuel has reached the blanket.
How is a turbo blanket attached?
With the stainless steel mounting springs supplied. You hook the springs across the blanket so it pulls tight around the turbine housing. No clamps or wire are needed.
Can you make a custom turbo blanket?
Yes. We make engine-specific blankets for trucks, marine engines and mining plant, and we can modify a standard design or custom make one for larger turbos. Send your measurements and photos, or call 1300 44 33 34.
