M278 Turbo Blankets – Heat Shield Upgrade for E550 CLS550 S550

Reduce Heat Soak & Improve Turbo Response on Your Mercedes-Benz

Unlock consistent, repeatable performance from your Mercedes-Benz M278 4.7L BiTurbo with our premium M278 Turbo Blankets. Engineered specifically for the twin-turbo 550 platform, these blankets retain heat inside the turbine housing to improve spool, reduce under-hood temperatures, and protect surrounding components under high load.

🔥 Key Benefits

• Up to 60% reduction in radiant heat for lower IATs and more stable power delivery.
• Improved turbo response by retaining exhaust energy inside the turbine housing.
• Reduced heat soak to charge-coolers, wiring, vacuum lines, and nearby engine components.
• More reliable performance during repeated acceleration or high-temperature conditions.
• Enhanced long-term durability thanks to significantly lower engine bay temperatures.
• Premium construction: volcanic rock fiber exterior (1800°F direct / 2500°F radiant), stainless mesh reinforcement, and CMS wool insulation (1832°F continuous).

🚗 Vehicle Fitment – M278 4.7L BiTurbo (550 Series)

• Mercedes-Benz S550 (2011–2017)
• Mercedes-Benz CL550 (2011–2014)
• Mercedes-Benz CLS550 (2012–2018)
• Mercedes-Benz E550 (2012–2016)
• Mercedes-Benz ML550 (2012–2015)
• Mercedes-Benz GLE550 (2016–2019)
• Mercedes-Benz GL550 (2012–2015)
• Mercedes-Benz GLS550 (2016–2019)

💡 Why Upgrade?

Turbo blankets are one of the most effective, low-cost upgrades for the M278 BiTurbo platform. By containing heat within the turbine housing, exhaust velocity remains high—improving turbo efficiency and reducing heat soak across the engine bay. This results in lower intake temperatures, faster turbo response, and improved long-term reliability.