$74.84 - $93.96
Manufactured - Ships in 3 to 5 days
Custom Built / Racing
Fitment Notes:
  • Not Vehicle Specific. May require professional installation. Typically used with custom built or racing vehicles
  • 1800°F (982°C) Continuous.
  • 2200°F (1204°C) Intermittent.
  • Use HP stack Sack on: Exhaust pipe stacks, Tail pipes.
  • To ensure precise fit, please check exhaust stack shape, length and inlet diameter: the latter should match your exhaust pipe diameter.
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Product Details

Universal performance parts brand accessories

HP Stack Sack™ Exhaust Stack Heat Shield by Heatshield®. Heatshield Products Stack Sack™ is designed to keep unwanted objects and water out of your race diesel engine’s exhaust while not in use. The Stack Sack™ is made from our HP Felt™ material, allowing you to cover stacks as soon as your vehicle has been turned off. This exhaust stack heat shield is also soft enough that it won’t scratch chrome or other finishes. HP Felt™ is capable of withstanding continuous 1,800 degrees F. The adjustable hook-and-loop fastener strap gives a snug fit while being towed down the highway to your next race. Our exhaust heat shields are a must for any pro diesel drag racer!.


  • 1800°F (982°C) Continuous.
  • 2200°F (1204°C) Intermittent.
  • Use HP stack Sack on: Exhaust pipe stacks, Tail pipes.
  • To ensure precise fit, please check exhaust stack shape, length and inlet diameter: the latter should match your exhaust pipe diameter.



Series: HP Stack Sack™
Insulation type: Dissipates Heat
Base Material: Carbon insulation, Aluminum


  • Use velcro strap to secure Stack Sack to exhaust pipe
  • Remove Stack Sack before turning engine on
  • Protects stacks from debris, rain, weather in between runs
  • Continuous direct contact temperature 1800°F
  • Soft HP Felt won't scratch most chrome stacks
  • Won’t melt like vinyl stack caps
  • Remove Stack Sack before turning engine on
  • Adjustable Velcro strap for tight fit
  • Made in the USA

An exhaust heat shield works much like an exhaust wrap. Both retain thermal energy inside your exhaust system. The construction and installation of an exhaust heat shield is far different compared to an exhaust heat wrap. All of the Armor Series™ exhaust heat shield insulation by Heatshield Products feature our exclusive BioCool™ technology. BioCool™ is a non-caustic, non-flammable insulator made from a bio-soluble silica. It does not cause itching and has limited smoke or smell the first time it is heat-cycled. Capable of withstanding 1,800-degrees Fahrenheit continuous and 2,200-degress Fahrenheit intermittent. Our Armor series exhaust insulation can reduce as much as 70 percent of heat radiating up from the exhaust system.

From the original fiberglass wrap, to the industry’s first lava rock exhaust wrap, to the extreme Inferno header wrap, no one has lead the way like Heatshield Products. In our true pioneering spirit we have introduced our Armor series of exhaust heat shield featuring our exclusive BioCool technology. It takes high temperatures and can be installed in a header warranty friendly way.

Heatshield Products® is a family owned and operated business and has been since 1985. They take great care to give you accurate information and bring you the best heat shields, exhaust wraps, heat protective sleeves and thermal insulation around. Thermal management is all about improving the efficiency and performance of your vehicle, vessel, manufacturing processes, or facility. From bulk heat shield textiles, biological and Eco-friendly insulation products, fabricated jackets, and heat shield barriers, we will not be out performed!

Warranty Information

Limited Warranty

Heatshield Products, Inc.’s merchandise are warranted for 90 days from date of purchase. If during this time period these products fail prematurely due to a manufacturing defect they will be replaced without charge upon their return to Heatshield Products, Inc. accompanied with a legible copy of an original proof of purchase and complete description of the problem. Customer is responsible for any freight charges on alleged defective products to Heatshield Products, Inc.; approved warranty replacement products will in turn be shipped without freight charge to customer.

Heatshield Products, Inc. is not responsible for any miss application and or misuse of products. This warranty is null and void if the products have been misused, misapplied or are not a correct application in accordance to the products advertised thermal parameters or if they have been damaged from malfunctioning other components of the vehicle or other damage caused by external factors.


The foregoing states Heatshield Products, Inc.’s’ entire and exclusive liability for any claim, including claims arising out of a breach of any implied warranties, in connection with the sale of the thermal insulation materials hereunder, and shall in no event be liable for any special or consequential damages what so ever.

Heatshield Products, Inc. shall not be liable for any and all consequential damages occasioned by the breach of any written or implied warranty pertaining to this sale in excess of the purchase price of the product sold.

This warranty gives you specific legal rights and you may also have other rights, which vary from state to state. Legible copy of original proof of purchase must accompany any claim against limited warranty.

Magnuson-Moss Warranty Act:
Legally, a vehicle manufacturer cannot void the warranty on a vehicle due to an aftermarket part unless they can prove that the aftermarket part caused or contributed to the failure in the vehicle (per the Magnuson Moss Warranty Act (15 U.S.C. 2302(C)) Learn More

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