BD Diesel Turbo Blanket - T4 S300/S400

This turbo blanket from BD Diesel is made with a durable outer layer and an internal fiberglass insulation. It's designed to fit Borg Warner T4 S300 and S400 turbocharger turbine housings, and also works with many similar-sized Garrett and Holset turbos. The goal here is to keep the heat from your turbocharger contained, which has a couple of big benefits for your diesel engine.

By trapping the heat within the turbine housing, this blanket helps the turbo spool up quicker. This means you get boost sooner when you step on the gas. It also significantly reduces the under-hood temperatures. This is important because it helps protect vital engine components like hoses and wiring harnesses from heat damage, potentially extending their life. A cooler engine bay can also lead to denser air entering the engine, which can contribute to more power.

Installation is made straightforward with the included stainless steel springs and built-in retaining clips, ensuring a secure fit. This blanket not only offers functional benefits but also adds a clean, stylized look to your turbo setup, complete with custom BD embroidery.