DEI Floor and Tunnel Shield II 21in x 2ft Heat Barrier — Universal

SKU: DEI50501
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Sale price$59.99
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About DEI

DEI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full DEI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Advanced Thermal Protection for Your Vehicle

The DEI Floor and Tunnel Shield II is the industry standard for blocking extreme heat from entering your vehicle's interior. Whether you are dealing with transmission tunnel heat, firewall proximity to the engine, or exhaust radiant heat, this 21-inch by 2-foot shield provides the ultimate thermal barrier.

Technical Specifications and Benefits

  • High Heat Reflection: Features an embossed 10-mil aluminum face that reflects up to 1750°F of radiant heat.
  • Composite Construction: Bonded to a 1/8-inch composite glass-fiber core for superior insulation.
  • Multi-Purpose Utility: Ideal for firewalls, transmission tunnels, floorboards, and fuel cells.
  • Dual Functionality: Provides excellent thermal protection while also acting as a sound-deadening layer.
  • Durable Design: Guards against road debris and track conditions with a high-tack adhesive backing.

This shield is lightweight and easy to trim, making it perfect for custom fabrication projects. By reducing heat transfer, you protect sensitive electronics, wiring, and interior components from heat damage while significantly lowering cabin temperatures. It is the professional choice for track cars, street rods, and high-performance builds. Get the best in thermal management technology from GGCRACING.

Product Details

Product Description
Part Numbers
Sizing & Fit

About DEI

DEI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full DEI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Advanced Thermal Protection for Your Vehicle

The DEI Floor and Tunnel Shield II is the industry standard for blocking extreme heat from entering your vehicle's interior. Whether you are dealing with transmission tunnel heat, firewall proximity to the engine, or exhaust radiant heat, this 21-inch by 2-foot shield provides the ultimate thermal barrier.

Technical Specifications and Benefits

  • High Heat Reflection: Features an embossed 10-mil aluminum face that reflects up to 1750°F of radiant heat.
  • Composite Construction: Bonded to a 1/8-inch composite glass-fiber core for superior insulation.
  • Multi-Purpose Utility: Ideal for firewalls, transmission tunnels, floorboards, and fuel cells.
  • Dual Functionality: Provides excellent thermal protection while also acting as a sound-deadening layer.
  • Durable Design: Guards against road debris and track conditions with a high-tack adhesive backing.

This shield is lightweight and easy to trim, making it perfect for custom fabrication projects. By reducing heat transfer, you protect sensitive electronics, wiring, and interior components from heat damage while significantly lowering cabin temperatures. It is the professional choice for track cars, street rods, and high-performance builds. Get the best in thermal management technology from GGCRACING.

Product Details

Product Description

About DEI

DEI engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full DEI lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Advanced Thermal Protection for Your Vehicle

The DEI Floor and Tunnel Shield II is the industry standard for blocking extreme heat from entering your vehicle's interior. Whether you are dealing with transmission tunnel heat, firewall proximity to the engine, or exhaust radiant heat, this 21-inch by 2-foot shield provides the ultimate thermal barrier.

Technical Specifications and Benefits

  • High Heat Reflection: Features an embossed 10-mil aluminum face that reflects up to 1750°F of radiant heat.
  • Composite Construction: Bonded to a 1/8-inch composite glass-fiber core for superior insulation.
  • Multi-Purpose Utility: Ideal for firewalls, transmission tunnels, floorboards, and fuel cells.
  • Dual Functionality: Provides excellent thermal protection while also acting as a sound-deadening layer.
  • Durable Design: Guards against road debris and track conditions with a high-tack adhesive backing.

This shield is lightweight and easy to trim, making it perfect for custom fabrication projects. By reducing heat transfer, you protect sensitive electronics, wiring, and interior components from heat damage while significantly lowering cabin temperatures. It is the professional choice for track cars, street rods, and high-performance builds. Get the best in thermal management technology from GGCRACING.

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