[i30joe]

Been considering a bit of sound deadening curious if anyone has attempted it.

How they done it.

Whether it was a valuable benefit.

Cabin noise is just a bit louder than I would hope for.

[CraigB]

Shark racing have a sound proofing kit, it actually works so I'm told by one of their techs I'd been dealing with for other applications 07-10 i30 DIY Soundproofing Kit - Shark Racing

[Asterix]

I wouldn't bother, have a read here:  Installing Noise Insulation - GD i30 CRDi

[CraigB]

I wouldn't bother, have a read here:

The kit I linked includes several areas not done in Alans, all doors and hatch are done with this kit.