A turbo can produce quite a lot of heat. Most of this heat ends up radiating into your engine bay making temperatures under the hood unbearable at time. Though you can't eliminate all the heat, you can definitely help lower it. One good way is using a thermal blanket on the turbo. Mishimoto understood this and created a turbo blanket that is perfect for your BMW Z4. Made from a outer layer of Volcanic Lava Rock rated for 1760 F and a inner layer of Silica Fiber rated for 2300 F ensures this blanket can take the heat. It easily fits over most factory turbos and some aftermarket turbos with similar dimensions. A stainless steel spring design makes it simple to securely install and easy to remove as well. This ensures the heat stays inside the turbo and keeps the temps under the hood, down.

Key Features:

• Wraps around most factory turbos and some similarly sized aftermarket turbos.
• Made of very high heat resistant materials.
• Simple stainless steel spring design make it very easy to install, even while the turbo is still on the car!
• Includes Mishimoto's lifetime warranty.

Blanket Size Selection Help: To determine the proper turbo blanket size, use the following guide based on the total diameter of your turbo's turbine (exhaust side) housing:

• Less than 5", use T25 / T28 turbo
• 5" - 6", use T3 turbo
• 7.5" - 8.5", use T4 turbo
• 8.5" - 10.5", use T6 turbo