Diesel swapped 2nd gen soundproofing

I have a 95 4runner that I've engine swapped with a VW (ALH swap). She runs great, but the issue I'm having is a tons of noise in the cab coming from the engine bay/turbo. I know diesels are inherently louder engines, but I'm trying to get the noise levels down as much as possible and I'm hoping someone out there might have some insights that will help.

I've already lined the hood with dynamat, and put 3 layers of dynamat inside the cab on the floor. I tried to stretch it as high as I could up the firewall, but there's still a good portion of firewall behind the dash that has no sound deadening on it. Doing all this made a small difference, but it wasn't huge.

What do you think my next steps should be? More deadening on the doors? Inner fenders? Drop the trans and do the tunnel? Thicker walled exhaust? Let me know what you think, I'm all ears!

 

Welcome to the forum. I suspect you’re right about the inherent diesel noise. Not sure what the result of going to those lengths to stop it will be. Good luck.