COBB EJ Turbo Blanket (821655) | Subaru WRX 2002-2014 / STI 2004-2021

The COBB EJ Turbo Blanket is designed to improve turbocharger efficiency and reduce under-hood temperatures on EJ-powered Subaru WRX and STI models. By insulating the turbine housing, this turbo blanket helps retain exhaust heat within the turbocharger, supporting quicker spool, improved response, and reduced radiant heat throughout the engine bay.

KEY FEATURES

• Thermal insulation helps the turbocharger maintain exhaust energy for improved spool
• Reduces radiant heat in the engine bay, protecting nearby components
• Supports more stable intake and intercooler temperatures
• Direct-fit design for EJ-series turbocharger applications
• Durable construction engineered to handle extreme heat cycles
• Ideal for stock, upgraded, or tuned turbo setups

TECHNICAL SPECIFICATIONS

• High-temperature outer layer designed to withstand prolonged heat exposure
• Inner insulating material retains heat within the turbine housing
• Stainless steel anchoring springs maintain secure fitment under vibration
• Shaped specifically for EJ-platform turbo housings to ensure proper coverage
• Helps reduce heat soak affecting intercooler and intake components

VEHICLE FITMENT

• Subaru WRX 2002–2014
• Subaru STI 2004–2021

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.