Undercoat / soundproof weight

[alw]

I just bought a new car and I'm wondering if anyone knows how much weight undercoating / soundproofing usually adds to the car (approx).

If anyone could let me know I'd be grateful

Thx

[Slashin_]

depends on your car,
undercoat is something you spray on,so depend who does,how much he sprays on
soundproofing depends what your gonna sound proof

[alw]

Just the spray on on the bottom of the car, nothing crazy beyond that. I'm just looking for some rough numbers. It's a Mazda3.

[danlowteg]

about 1000 pounds so make sure to get a zex nitrous kit

[alw]

1000 lbs? rofl any serious responses?

[LongCity]

It's like a couple lbs for undercoating. Single digit weight; wouldn't expect it to change anything.

[alw]

Alrighty, thanks for the info