NVH

[Stangra]

I will be repainting my engine bay soon and don't want to reinstall the old deteriorated firewall insulation. I would prefer to not replace with new either but if it reduces NVH significantly I will, I don't think there's much weight there. Anyone notice a big increase after removing this? Or an increase in cabin heat?

 

[Scootsmcgreggor]

Didn't notice an increase in NVH or cabin heat after removing it on my S550. I'm sure it is incrementally louder, but even my mildly modified exhaust covers up the increase.

Do it!

 

[RodS197]

Nice car! With all your go fast mods and race heim joints you have, I can’t imagine you will hear a difference. I took the firewall blanket out. Didn’t notice a thing.

 

[misterpeanut]

The only difference I noticed was how much cleaner and nicer it is to work on. I removed it from the hood, firewall, strut towers, and anywhere else that it was. The engine bay is so much brighter and cleaner without the rat fur.

 

[Scootsmcgreggor]

The only difference I noticed was how much cleaner and nicer it is to work on. I removed it from the hood, firewall, strut towers, and anywhere else that it was. The engine bay is so much brighter and cleaner without the rat fur.

same!

 

[Stangra]

The only difference I noticed was how much cleaner and nicer it is to work on. I removed it from the hood, firewall, strut towers, and anywhere else that it was. The engine bay is so much brighter and cleaner without the rat fur.

I've seen and like the clean look. It's something I've always wanted to do and now's the time!
As for the hood, I'm installing a Chicane23 hood and love the glossy exposed carbon fiber on the underside.
I think no more rat fur for me either!

 

[Dave_W]

Related question - I've heard that more insulation was added to the S197 engine bay over the years. Does anyone know what the least amount of engine bay insulation was on an S197 from the factory? Specifically, 2005-2013 Mustang, including Boss, and 2007-2010 GT500.

 

[8bitmime]

My 2005 doesn't have engine bay/ firewall insulation and never did.