Dynamat hood liner

Wondering if any have put on a Dynamat hood liner #11905 or similar product and how that worked to reduce engine and road noise. Truck didn't come with hood liner and OEM Hood Insulation Pad #53341-35161 is about the same price as a similar Rolls Royce OEM part.

 

Hood liner can be found online for around $185, cheapest I found was $170ish with coupons. A comparable amount of Dynamat would probably run about that. Probably better off just going OEM. Also I would be leary of running Dynamat above a hot, vibrating engine.

 

Thanks Pablo, Dynamat hood liner is 3/4" high temp acoustic foam lined with reinforced aluminum foil specific for engine bay, runs about $85 here through Amazon to the door, looks to be a quality product; https://www.dynamat.com/products/hoodliner/. Toyota OEM hood liner kit in this area costs about $600 ($781 CAD), don't know if I can get one shipped up from the US but I'll have a look.

 

My concern wasn’t engine noise but the hood metal fluttered and vibrated at highway speeds especially if there was a cross wind. Maybe this is more noticeable with the models with a fake hood scoop.

What I did was squirt polyurethane caulking everywhere there were hood-to-rib gaps to create more points of support for that thin hood metal. The larger gaps I filled with little closed cell foam blocks and then caulk. This stiffened the hood nicely and no more vibrations. Note that the polyurethane caulk needs several hours or overnight to cure and outgas.

 

Thanks EB thats a good idea for these floppy hoods, still want to add some sound barrier also.

 

I think Dynamat is too heavy for entire hood. I wouldn't do it. My factory insulation got moldy and dirty from hood scoop water. I replaced it with new one but installed clear film between the hood and insulation material (same protective film contractors use to cover carpet during construction available in many hardware stores) to direct water out of insulation instead of soaking it in. Stick it to the insulation not to the hood though to prevent moisture trapping. Second year with it and looks brand new and clean still.

 

I had this installed including dynamat doors and panels on my 2014 honda pilot. I did notice a slight improvement in engine noise with the hood liner. It does trap a little more heat and if you live in winter climate. It takes more effort to remove snow from the hood. If your looking to quiet things down just dynamat the doors and rear panels first.