Me and my closest pal worked with yoga mats on his sift and trust me, It's soo awesome, The punch from the front speakers increased. And no rattling sounds from any of the doors. Stuffed cotton waste in the boot and now the car is completely rattle free. Damping is a bit expensive and heard that because of heat damping seets are peelingoff from the doors. I suggest go for yoga mats. Cheapest way to dampen your car and its worth every rupee you pay for it.