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It's a brand new doghouse. New gasket. Problem the turbo doghouse uses no high mass insulators. Just a reflective heat barrier and the fiberglass the cover itself is made of. The NA doghouse has that thick mass loaded insulation.

Yeah I have some wrap laying around. The heat shield seems to be doing a good job. But heat isn't my problem, it's just the noise. It's stupid the engine sounds the same standing outside the vehicle with the hood open as it does when sitting inside.

Yeah that's what I initially kinda did with the boom mat spray on insulation. Got a good coating but no where as good as the original NA doghouse rubber.

Ive done some research into lead rubber sheets and they seem to be much more effective than foam. I just don't know where to get the right stuff.

I just finished up my 6.5 turbo swap from my old 6.2 and took it out on the road yesterday and practically went deaf going 45 mph. I had my 4l80 mated with my 6.2 before and at 50 it was relatively quiet, I could actually have a conversation at that speed. Now I'm screaming at passengers above...