It is important to have the well suited firewall insulation. Let’s take you step by step, type by type, and find the best firewall insulation for you.

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Our Top Picks:

Best Overall: Buy: Thermo-Tec Firewall Insulation READ REVIEW

Best For Heavy Duty: Buy: Siless Firewall Insulation READ REVIEW

Best For Car Hood: Buy: Abahub Firewall Insulation READ REVIEW

Best For Generator Boxes: Buy: Design Engineering Firewall Insulation READ REVIEW

Best For Rear Hatch: Buy: Soomj Firewall Insulation READ REVIEW

Best For Top Layer: Buy: Vibro Solution Firewall Insulation READ REVIEW

Best For Engine Bay: Buy: Pacific Performance Engineering Firewall Insulation READ REVIEW

Best For High Performance: Buy: Mofun Firewall Insulation READ REVIEW

Best For Comfortable Driving Environment: Buy: Koikey Firewall Insulation READ REVIEW

Best Overall: Thermo-Tec Firewall Insulation

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Thermo-tec firewall insulation is the epitome of what a great insulation should be. The Thermo-Tec Firewall Insulation is made with great stuff, is great with very little waste and it is ideal for heat protection. Make sure this fits by entering your model number. Also, this allows for greatly reduced heat and it is good for road noise.

The insulation is good for outside of the car, is sound fair and it is malleable. In addition, it is great for areas like firewalls, floorboards or doors. Most importantly, the thermo-tec firewall insulation is made for quick delivery, sticks very well and it can be said for ease of installation.

Most buyers quickly discovered that the insulation will help keep heat from escaping through. In addition, they also found that the insulation will take that much direct heat. Moreover, they say that the highly reflective surface of the material is capable of withstanding radiant temperatures up to 2000 ° f. Overall, buyers found this to be one of the best insulations for daily purposes.

• This has features of very good quality and it is very happy.
• This can be used in stoves and hot water heaters.
• This is used to enclose factory sub locations.
• This is almost certainly a high percent butyl.

Best For Heavy Duty: Siless Firewall Insulation

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate insulation. The Siless Firewall Insulation is exactly that - it's a simple insulation that hits all the right notes. The siless firewall insulation provides great value and it is ideal for water proof. Siless liner is a very versatile insulation material with excellent thermal barrier properties that will block engine, exhaust, & summer heat, ensure your vehicle stays cooler in the summer and warmer in the winter, making your ride more pleasant. The operating temperature of the material is the same as of the rubber foam up to 215 degrees fahrenheit.

The insulation works very well, makes for easy installing and it is made for good stuff. Moreover, the insulation is great for total coverage area, is pliable and it is highly recommend. Finally, the siless firewall insulation works great, cuts easy and it is made for perfect thickness.

Most buyers quickly discovered that the insulation is supposed to go either over siless 80 or 50 mil sound deadener, or install itself on bare metal. Moreover, a few also found that the insulation is easy to cover the trunk after throwing down a layer of butyl rubber. In addition, they strongly agree that this material is rather poor for preventing sound coming through it.

• This does help. It is not sound proofing but it definitely helps muffle it a little better.
• This will silence the engine on the yacht.
• This is easy to cut and stick in place.
• This can prevent mold growth. It’s not for insulation, it’s sound dampening more than anything.

Best For Car Hood: Abahub Firewall Insulation

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Abahub is known for creating pragmatic and minimalist insulation for people on the go, and its line of Abahub Firewall Insulation definitely falls in line with that reputation. The abahub firewall insulation is used for less heat, is made with a fire resistant hood and it has reduced heat. Abahub aluminum coating fire-resistant insulation provides a heat barrier, which blocks the noise coming out of your engine. The insulation of each part of the vehicle has its own results and contribution to the overall outcome.

Lastly, the abahub firewall insulations are good for sound isolation but also keeps the temperature cool/warm in the car.

Almost all buyers agree that the insulation is rolled and folded and comes with a hood pad from the factory. Further, they also found that the insulation is good for the purpose you want it for. Moreover, a few also found that the new insulation has a very sticky backing, but it needs a clean surface to stick to. As a result, buyers were eager to recommend it to friends and families.

• This is self-adhesive, is great for road noise and it is highly recommended.
• This is water resistant and suitable for car hood.
• This is very easy and it is incredible.
• Manufacturer says: We recommend that as a firewall insulation is the best choice.

Best For Generator Boxes: Design Engineering Firewall Insulation

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Not everyone likes to purchase insulation for their daily usage, but the Design Engineering Firewall Insulation would be an anomoly. The design engineering firewall insulation is designed primarily for engine compartments as a way to greatly reduce heat and noise with a simple and easy peel and stick application. . Moreover, this can be used as noise control applications such as on generator boxes and many industrial uses, including hvac applications.

The insulation is cut to fit and it works well against road noise. In addition, the insulation allows for less heat and it is present. Lastly, the design engineering firewallinsulation makes for easy install, is good for heat protection and it is made for ease of installation.

Most buyers found that the insulation is clean and oil free. Also, they also found that the insulation is easy to install and is strong enough to hold the mat in place without peeling off. Moreover, they say that the design engineering under hood insulation mat is easy to cut, fit & install. Overall, most customers agree that the insulation is functionally comfortable and no one questions it.

• This will sound proof and cool the outside of the hood.
• This is used all over the marine industry.
• This makes for much quieter, looks great and it adheres well.
• This has reduced noise, it is great for high performance and has a good design.

Best For Rear Hatch: Soomj Firewall Insulation

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Soomj line of insulation comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Soomj Firewall Insulation sticks very well and it is used for engine bays. Make sure this fits by entering your model number. The fire proofing grade with the mat is b1 and its distortion temperature is 200 ℃ high temperature resistance, easy to cut & fit, and strong adhesive backing.

The insulation is incredible, has reduced noise and it reflects heat. Also, this allows for a rear hatch and it is highly recommend. Above all, the soomj firewall insulation is ideal for underfloor applications as it has great load resistance properties.

Most customers quickly discovered that the insulation is made of fiberglass and noise. Also, they strongly agree that the insulation is perfect for boat use. Moreover, they also found that the insulation will deaden noise and maybe some vibration. In conclusion, most customers found the insulation is functionally comfortable and no one questions it.

• This is ideal for underfloor applications as it has great load resistance properties.
• This can be used on a twin engine jet boat.
• The sound - deadening material itself is fluffy, almost like cotton wadding.
• This has an adhesive on one side & it is not removable once installed.

Best For Top Layer: Vibro Solution Firewall Insulation

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The Vibro Solution Firewall Insulation's superior materials makes sure that it ages well with use. The vibro solution firewall insulation is perfect for floor boards and it is very simple. There are no logos all over the product and it is 100% proudly made in America. This 200 mil product is made for the top of the firewall down and around the transmission tunnel.

The insulation comes with 10 sheets of the thickest embossed black foil butyl material in the industry. Most importantly, the vibro solution firewall insulation is based on a self - adhesive butyl mastic with excellent heat, vibration and noise cancelling features.

Most buyers agree that the insulation does a wonderful job blocking the heat and quieting the engine noise in the cab. And, they say that the insulation is used for soundproofing but should not be exposed to high temperatures. Also, they also found that this is by far the best sound / heat insulation on the market and it is made in the USA.

• This will stick to bedliner paint.
• This provides for great adhesion and it is very useful.
• This mat from Vibro blows away the others on the market.
• Vibro 200 mil black constrained layer damping material.

Best For Engine Bay: Pacific Performance Engineering Firewall Insulation

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For a low asking price, Pacific performance engineering firewallinsulation has managed to overwhelm their customers by packing as many features as they could. Time to upgrade your tattered, dirty firewall insulation with the brand new ppe insulator firewall. In addition, the insulation features merrowed stainless steel wire edging for long-lasting performance and grommets for an oem fit. In conclusion, with a 4.8 rating and more than 136 buyers, the Pacific Performance Engineering Firewall Insulation stands as the best choice.

Most buyers found that the insulation fits 1500hd and probably regular 1500’s as well. fits perfectly nice clean look well made. Also, they say that the insulation does take some finesse to install while the engine is in the truck. Overall, most customers agree that the insulation is functionally comfortable and no one questions it.

• Create a barrier between you and the heat in your 2001.
• Good brand reputation.

Best For High Performance: Mofun Firewall Insulation

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Mofun line of insulation comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Mofun Firewall Insulation is fitment and it is good for the top layer. The packaging of the product is folded for better delivery. Further, the insulation is built for great sound and it is designed for high performance. Above all, the mofun firewall insulation can also be used on car roof floors, hood, firewall, chassis, trunk room, trunk lid, fenders and so on.

• Can slow down the aging of your car paint.
• Good brand reputation.

Best For Comfortable Driving Environment: Koikey Firewall Insulation

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Next on the list, we've got yet another insulation that manages to win our hearts. It's the Koikey Firewall Insulation and it's widely considered as insulation that has the most suitable features. The koikey firewall insulation is perfect for strong adhesion and it has reduced noise. Make sure this fits by entering your model number. The thicker the material, the better the ability to isolate sound and vibration.

The insulation is relatively low in winter, The thermal insulation cotton can also protect the temperature in the cabin from dropping rapidly, so the temperature in the cabin will not drop sharply, which can greatly reduce the damage caused by restarting the engine. Lastly, the koikey firewall insulation comes with a self-adhesive backing and it comes with self-adhesive backing waterproof.

• This is self-adhesive and it is good for total coverage area.
• This has excellent load resistance, so it is the best choice for flooring.
• Add more protection to your beloved car and make your driving experience more comfortable.
• The sound insulation cotton has a certain flame retardancy.