what are you guys doing for noise deadening?

[WolfWings]

Originally Posted by talnlnky

The firewall, floorboards, and wheel wells seem to be the main culprits in the HB. The foot area behind the front seats is VERY Flimsy, I actually put 3 layers of mat, then a layer of ensolite foam, and honestly, I still feel it could be better (but its good enough).

Very, VERY true. I'll verify this as someone else that's damped out most of their HB, had various audio-philes crawl around the bare-metal vehicle while I rolled over a gravel driveway, one was daring enough to let me take it for a brief spin on the highway and back so he could listen for road-noise spots.

Rear wheel wells and the floorpan under the rear seats are big culprits. The rear hatch itself is actually quite worth laying a good layer of mat inside, though due to needing to get into the guts for lights I don't recommend fully sealing it like a door.

My 3-door Yaris hatchback/liftback has between 1 and 5 layers of RaamMat across everything behind the B-pillar, the 5 layers are on the rear quarter panels behind the rear speakers. That part is just so friggin' flimsy it took that much material to get it to stop going 'ting' when I rapped the sheetmetal on the outside with my knuckles. Most of it's only 2 layers, just one or two spots on the big flat expanse about 3-6 inches below the 'crease' in the bodywork acted like a tom-tom drum.

I subscribe to the 'stop the metalling ting' approach to dampening first though, aiming just to reinforce and stop white-noise from penetrating but still wanting distinct outside noises to be able to punch through. More akin to a Lexus or Benz than a DB Drag Race style, less 'complete seal' and more 'not THAT was a satsifying door to slam' and 'oh crap, what did I just run over?' type.