COBB Part Number: 872650
The COBB Turbo Blanket for the Mazdaspeed3 is a high-temperature thermal insulation upgrade designed to reduce engine bay heat, improve turbo efficiency, and protect surrounding components on the 2.3L DISI turbo platform.
Turbochargers generate extreme heat during operation, which can radiate into the engine bay and contribute to heat soak, degraded performance, and accelerated wear of nearby components. The COBB turbo blanket wraps the turbine housing with advanced thermal materials, helping retain heat within the turbocharger while reducing radiant heat transfer to surrounding parts.
By keeping exhaust energy concentrated inside the turbine housing, the turbocharger can spool more efficiently, resulting in improved throttle response and more consistent performance under load.
If you’re searching for a Mazdaspeed3 turbo blanket, COBB turbo blanket, or 872650, this system offers a proven solution for heat management and performance optimization.
Installing a turbo blanket on the Mazdaspeed3 delivers several performance and reliability advantages:
Reduced engine bay temperatures
Improved turbo spool and throttle response
Lower intake air temperatures
Reduced heat soak in intercooler piping and intake components
Extended lifespan of hoses, wiring, and nearby engine components
Increased efficiency of exhaust gas flow
By trapping heat within the turbine housing, hotter exhaust gases maintain higher velocity, which helps the turbocharger accelerate more quickly and reach peak torque sooner.
The COBB Mazdaspeed3 turbo blanket is constructed using advanced high-temperature materials designed for extreme turbocharger environments.
Construction details:
Outer layer made from fire-retardant volcanic rock material
Inner insulation using calcium magnesium silicate wool
Rated for approximately 1500°F direct heat and 1800°F radiant heat
Internal insulation rated up to 2300°F peak temperatures
Designed to withstand prolonged high-heat exposure
These materials provide exceptional thermal containment while maintaining durability and long-term reliability under boost and high exhaust temperatures.
Mazdaspeed3 (2006–2013)
Compatible with OEM and most stock-frame aftermarket turbos
The COBB turbo blanket is engineered as a direct-fit solution for the Mazdaspeed3 platform with OEM-like installation and secure retention hardware.
Many Mazdaspeed3 builds focus on power upgrades such as intakes, intercoolers, and downpipes, but thermal management is equally important for consistent performance and reliability.
Compared to the factory heat shield, the COBB turbo blanket provides:
Improved thermal containment around the turbine housing
Better coverage of the turbocharger and downpipe flange
Enhanced turbo response and efficiency
Superior protection for engine bay components
By reducing radiant heat and improving exhaust energy retention, the turbo blanket supports both performance and longevity of the turbocharged system.
The COBB turbo blanket is ideal for:
Stock Mazdaspeed3 builds seeking improved heat management
Tuned vehicles running higher boost levels
Track or spirited driving applications
Builds with upgraded intercoolers, downpipes, or turbochargers
It is commonly used as a supporting modification for high-performance Mazdaspeed3 setups where consistent thermal control is critical.
The COBB turbo blanket installs directly onto the turbocharger turbine housing using integrated retention hardware. No permanent modifications are required.
For step-by-step installation guidance, view the official instructions here:
➡️ Installation Instructions (PDF)
Will a turbo blanket increase horsepower?
A turbo blanket does not directly increase horsepower, but it supports improved turbo efficiency and more consistent power delivery by reducing heat loss and heat soak.
Is this compatible with aftermarket turbos?
Yes. It is designed to fit OEM and most stock-frame aftermarket turbochargers.
Will this reduce under-hood temperatures?
Yes. By limiting radiant heat from the turbocharger, the blanket helps reduce overall engine bay temperatures.
Is this product safe for daily driving?
Yes. The COBB turbo blanket is engineered for continuous high-temperature operation and daily use.
Does it replace the factory heat shield?
It can be used alongside or in place of factory heat shielding depending on the setup.
COBB Part Number: 872650
The COBB Turbo Blanket for the Mazdaspeed3 is a high-temperature thermal insulation upgrade designed to reduce engine bay heat, improve turbo efficiency, and protect surrounding components on the 2.3L DISI turbo platform.
Turbochargers generate extreme heat during operation, which can radiate into the engine bay and contribute to heat soak, degraded performance, and accelerated wear of nearby components. The COBB turbo blanket wraps the turbine housing with advanced thermal materials, helping retain heat within the turbocharger while reducing radiant heat transfer to surrounding parts.
By keeping exhaust energy concentrated inside the turbine housing, the turbocharger can spool more efficiently, resulting in improved throttle response and more consistent performance under load.
If you’re searching for a Mazdaspeed3 turbo blanket, COBB turbo blanket, or 872650, this system offers a proven solution for heat management and performance optimization.
Installing a turbo blanket on the Mazdaspeed3 delivers several performance and reliability advantages:
Reduced engine bay temperatures
Improved turbo spool and throttle response
Lower intake air temperatures
Reduced heat soak in intercooler piping and intake components
Extended lifespan of hoses, wiring, and nearby engine components
Increased efficiency of exhaust gas flow
By trapping heat within the turbine housing, hotter exhaust gases maintain higher velocity, which helps the turbocharger accelerate more quickly and reach peak torque sooner.
The COBB Mazdaspeed3 turbo blanket is constructed using advanced high-temperature materials designed for extreme turbocharger environments.
Construction details:
Outer layer made from fire-retardant volcanic rock material
Inner insulation using calcium magnesium silicate wool
Rated for approximately 1500°F direct heat and 1800°F radiant heat
Internal insulation rated up to 2300°F peak temperatures
Designed to withstand prolonged high-heat exposure
These materials provide exceptional thermal containment while maintaining durability and long-term reliability under boost and high exhaust temperatures.
Mazdaspeed3 (2006–2013)
Compatible with OEM and most stock-frame aftermarket turbos
The COBB turbo blanket is engineered as a direct-fit solution for the Mazdaspeed3 platform with OEM-like installation and secure retention hardware.
Many Mazdaspeed3 builds focus on power upgrades such as intakes, intercoolers, and downpipes, but thermal management is equally important for consistent performance and reliability.
Compared to the factory heat shield, the COBB turbo blanket provides:
Improved thermal containment around the turbine housing
Better coverage of the turbocharger and downpipe flange
Enhanced turbo response and efficiency
Superior protection for engine bay components
By reducing radiant heat and improving exhaust energy retention, the turbo blanket supports both performance and longevity of the turbocharged system.
The COBB turbo blanket is ideal for:
Stock Mazdaspeed3 builds seeking improved heat management
Tuned vehicles running higher boost levels
Track or spirited driving applications
Builds with upgraded intercoolers, downpipes, or turbochargers
It is commonly used as a supporting modification for high-performance Mazdaspeed3 setups where consistent thermal control is critical.
The COBB turbo blanket installs directly onto the turbocharger turbine housing using integrated retention hardware. No permanent modifications are required.
For step-by-step installation guidance, view the official instructions here:
➡️ Installation Instructions (PDF)
Will a turbo blanket increase horsepower?
A turbo blanket does not directly increase horsepower, but it supports improved turbo efficiency and more consistent power delivery by reducing heat loss and heat soak.
Is this compatible with aftermarket turbos?
Yes. It is designed to fit OEM and most stock-frame aftermarket turbochargers.
Will this reduce under-hood temperatures?
Yes. By limiting radiant heat from the turbocharger, the blanket helps reduce overall engine bay temperatures.
Is this product safe for daily driving?
Yes. The COBB turbo blanket is engineered for continuous high-temperature operation and daily use.
Does it replace the factory heat shield?
It can be used alongside or in place of factory heat shielding depending on the setup.
