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Sound Deadening under bonnet

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All the sound deadening stuck to the underside of my bonnet has degraded and is dropping all over the engine bay, my local dealer has quoted £70 :shock: for a replacement set of panels, has anyone else used any alternatives? I want to keep it as it does soak up al lot of the engine sound keeping it quieter in the cabin.

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I've got noisekiller under my G60's bonnet. Doesn't make it silent by any means but definitely muffles it. And it looks cool.

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I used a roll of Dynamat hoodliner on mine.

 

I carefully removed the old crumbly panels and used them to cut new templates. Easy peasy.

 

The hoodliner has been stuck on my bonnet for a good few years now I reckon, over a year of that suffering turbo heat and the glue is still bonded like barnacles to the bonnet. Awesome stuff.

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Sound waves are only absorbed by non reflective surfaces which is why the VAG stuff is like a waffle and is open cell foam.

 

So how can the shiny alternatives work with a reflective surface? Surely that's meant for a bulkhead -to reflect the sound and heat back into the engine bay??

 

It's a bit like when you drive your car over grass the engine sounds much quieter then on tarmac because the sound is absorbed by the grass but reflected by tarmac.......

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I'm looking to re-new my under bonnet foam and would like to know if the VR6 foam will fit on a early G60 bonnet.

 

Also been reading up on here about Noisekiller and Dynamat (is that how you spell it) products, which is best?

 

Chris

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I'm looking to re-new my under bonnet foam and would like to know if the VR6 foam will fit on a early G60 bonnet.Chris

 

Yup, same part number for early and late Chris: 323 863 950

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Part number was checked against a 1991 Corrado and a 1994 Corrado, I doubt they would made the foam a different shape, there seems to be no reason for it.

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Check the link in shawshankkids post above ^^^^

 

Definitely different patterns! :wink:

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I guess VAGCAT is wrong then :roll:

 

 

YEP just seen this topic, check out the first post.[/quote:2ogwgbrg]

 

Not sure what you're referring to mate :scratch:

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