What did you do to your Fiesta ST today ?

Downsy · 2025-01-12T11:23:49-0600

I just did this on mine over the winter break and I can absolutely attest to the fact that it's life-changing. What a difference ! Thanks @KXNGABE85

I'll have more details on my build thread soon, but the gist of it is :

80mil butyl insulation as a first layer : LINK
View attachment 65080

394mil closed cell foam insulation as a second layer : LINK
View attachment 65079

Wow! The 3.5k-4.5k RPM resonance on downshifts is attenuated to a large degree and the cabin is much quieter.

how much weight do you think you picked up?

Volumetrik · 2025-01-12T11:28:36-0600

The butyl panels were the most heavy parts of this. The thicker foam is quite light. I think I used five butyl panels overall. I'll weigh the panels next weekend and reply here.

Honestly, I think I added less than 10lbs.

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What did you do to your Fiesta ST today ?

Downsy

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Volumetrik

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