If installing this under the hoodliner stops the heat from reaching the hood does this make the engine run hotter?

It will keep the hood from absorbing heat.In theory the hood is acting like a like a heat sink letting air flowing over it to help dissapate the hot temperature.But all it really does is deflect the heat down and around the engine.I used it on my hot running sports car and got no noticeable difference in engine temp.It did do a terrific job of keeping the hood from frying the paint.

For firewall application to reduce noise/heat would you recommend using Hoodliner on top of Dynamat Extreme or just this?

I recommend both Dynamat Extreme & this. That's what I did. It has held up now for nearly a year. That said, there was only about a 10-20% reduction of noise from my diesel. Most of that being higher frequencies. That's just the way of diesels though.

Does this work for high frequency eng/trans noise if applied to the floor boards or firewall and hood?

Not sure about high frequency, but it does muffle the engine noise. I have a cab forward vehicle (Jeep FC170) where the engine sits between the seats.

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DYNAMAT 11905 Hoodliner 32" x 54" x 3/4" Thick Self-Adhesive Sound Deadener – Made in USA

DYNAMAT 11905 Hoodliner 32" x 54" x 3/4" Thick Self-Adhesive Sound Deadener – Made in USA

Product ID: 3848772

Details

Brand
Dynamat
Item Thickness
0.75 inches
Material
Foam Aluminum
Product Dimensions
54"L x 32"W
Recommended Uses For Product
car

🔇97% noise absorption

🔥Reflects up to 97% radiant heat

🇺🇸Made in USA, trusted since 1989

39540 kr

Duties & taxes included

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Sold byAmazon IcelandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🚗 Silence & Coolness, Engineered for the Elite

BUILT TO LAST - Durable 3/4" thickness with reinforced aluminized skin for long-term performance and protection.
HEAT SHIELD MASTERY - Reflects up to 97% of radiant heat, protecting your hood’s paint and keeping your engine cool.
QUIETER DRIVES AHEAD - Absorbs engine noise with advanced 'Sound Soaker' foam for a peaceful cabin vibe.
PRO GRADE RELIABILITY - Preferred by top hot rod builders and custom car pros for unmatched sound and heat control.
EFFORTLESS INSTALLATION - Self-adhesive backing ensures a hassle-free, secure fit on your vehicle’s hood.

The DYNAMAT 11905 Hoodliner is a premium 32" x 54" x 3/4" self-adhesive sound deadener made in the USA. Featuring advanced 'Sound Soaker' foam and a reinforced aluminized skin, it absorbs up to 97% of engine noise and reflects 97% of radiant heat, protecting your vehicle’s hood paint while delivering a quieter, cooler ride. Trusted by professional custom builders since 1989, it covers 12 square feet and installs easily for lasting sound and heat control.

Specifications

ASIN	B00069QLVC
Best Sellers Rank	#126,520 in Health & Household ( See Top 100 in Health & Household ) #59 in Sound Therapy Products
Brand Name	Dynamat
Coverage	12 square_feet
Customer Reviews	4.6 4.6 out of 5 stars (630)
Global Trade Identification Number	00769103119056
Item Dimensions L x W	54"L x 32"W
Item Thickness	0.75 inches
Manufacturer	Dynamat
Manufacturer Part Number	11905
Material Type	Foam, Aluminum
Model Number	11905
Number of Items	1
Recommended Uses For Product	car
UPC	769103119056
Unit Count	1 Count

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