DEI Form-A-Shield 21in x 48in Heat Barrier — Fits Custom Exhaust Fabrication

SKU: DEI10517
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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.

Precision Thermal Control for Exhaust Systems

The DEI Form-A-Shield is designed for builders who require a high-performance, direct-contact thermal barrier. This 21-inch by 48-inch sheet is ideal for shielding specific areas of your exhaust system, including headers, manifolds, and turbo downpipes. With the ability to withstand direct heat up to 1400°F, it provides the peace of mind needed for high-output engine builds.

Why Use Form-A-Shield?

  • High-Temp Rating: Rated for direct contact with temperatures up to 1400°F+.
  • Pliable Material: Easily conforms to irregular shapes, making it perfect for custom headers and turbo housings.
  • Dual-Layer Protection: Features 10 mil dimpled aluminum bonded to a high-temp basalt barrier.
  • Chemical Resistance: Built to endure the rigors of the track, including oil and chemical exposure.

By effectively containing heat within the exhaust stream, Form-A-Shield helps lower under-hood temperatures, which can lead to improved engine efficiency and reduced heat soak. This material is easy to fasten using straps, clamps, or mechanical fasteners, allowing for a secure fit on any component. Whether you are working on a custom turbo setup or simply need to protect a sensitive area near your exhaust, this shield is a versatile addition to your fabrication toolkit. Experience superior thermal management with DEI products 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.

Precision Thermal Control for Exhaust Systems

The DEI Form-A-Shield is designed for builders who require a high-performance, direct-contact thermal barrier. This 21-inch by 48-inch sheet is ideal for shielding specific areas of your exhaust system, including headers, manifolds, and turbo downpipes. With the ability to withstand direct heat up to 1400°F, it provides the peace of mind needed for high-output engine builds.

Why Use Form-A-Shield?

  • High-Temp Rating: Rated for direct contact with temperatures up to 1400°F+.
  • Pliable Material: Easily conforms to irregular shapes, making it perfect for custom headers and turbo housings.
  • Dual-Layer Protection: Features 10 mil dimpled aluminum bonded to a high-temp basalt barrier.
  • Chemical Resistance: Built to endure the rigors of the track, including oil and chemical exposure.

By effectively containing heat within the exhaust stream, Form-A-Shield helps lower under-hood temperatures, which can lead to improved engine efficiency and reduced heat soak. This material is easy to fasten using straps, clamps, or mechanical fasteners, allowing for a secure fit on any component. Whether you are working on a custom turbo setup or simply need to protect a sensitive area near your exhaust, this shield is a versatile addition to your fabrication toolkit. Experience superior thermal management with DEI products 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.

Precision Thermal Control for Exhaust Systems

The DEI Form-A-Shield is designed for builders who require a high-performance, direct-contact thermal barrier. This 21-inch by 48-inch sheet is ideal for shielding specific areas of your exhaust system, including headers, manifolds, and turbo downpipes. With the ability to withstand direct heat up to 1400°F, it provides the peace of mind needed for high-output engine builds.

Why Use Form-A-Shield?

  • High-Temp Rating: Rated for direct contact with temperatures up to 1400°F+.
  • Pliable Material: Easily conforms to irregular shapes, making it perfect for custom headers and turbo housings.
  • Dual-Layer Protection: Features 10 mil dimpled aluminum bonded to a high-temp basalt barrier.
  • Chemical Resistance: Built to endure the rigors of the track, including oil and chemical exposure.

By effectively containing heat within the exhaust stream, Form-A-Shield helps lower under-hood temperatures, which can lead to improved engine efficiency and reduced heat soak. This material is easy to fasten using straps, clamps, or mechanical fasteners, allowing for a secure fit on any component. Whether you are working on a custom turbo setup or simply need to protect a sensitive area near your exhaust, this shield is a versatile addition to your fabrication toolkit. Experience superior thermal management with DEI products from GGCRACING.

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