Got my front doors and rears dynamated, only did fronts and had left over so decided to do rears to.

Made a huge difference, appart from adding weight as stated above definetely worth the money.

How much extra weight are we talking? It surely can't be more than a kilo or two?

I'm not too fussed about weight, the car's not a track hag (I've got the bike for that) and I'm not one for drag-racing off the lights.

Mate just do a square around the cone, and if you feel it needs more then do the whole door :)

Dynamat isn't the cheapest hahaha so use offcuts from boot if you can :p