How much sound insulation?

[vectorit]

I used 3 "trunk kits" from Dynamat just to do the metal floor section, along with two door panels. The stuff is espensive...

My drive train noise still comes through pretty loud, even with a layer of jute padding and MIP layer on the carpet.

I took a day long road trip in my burb yesterday, and it was all pretty much highway speeds. Towards the end, I was thinking of ways to make things quieter inside again.

My interior noise has lessened considerably since I have added my sound proofing, but I am still looking for ways to make it even more quieter with out having to swap my Rockwell Tcase for a New Process lol.