I installed this on
Volvo XC90

Review
Bass lovers, get this. My friend recommended me this sound-proofing mats as I was told that these mats contain soundwaves from escaping the car. I've few of it to be installed in my car, and the results were of expected! Bass waves were 'reflected' off these mats, and it was just real awesome. The price may be a little steep, but if you wanna go further in improving your audio experience!

What I like
'Reflects' bass waves back into the car accurately, making the sound experience way better.

What I do not like
Price is quite steep.

I installed this on
Volkswagen Golf

Review
I absolutely do not regret getting these sound dampers. They had provided me with an extra umph for my stereo system. Without using these dampers, bass boosts and vibrations are really messy! My whole car just feels like a club with loud music and drunk dancers. After installing these, the vibrations now have a more cleaner tone to eat, and it just feels good! Recommended to all the drivers out there. May be slightly expensive for your liking, but definitely WORTH IT!

What I like
Provided me a much more cleaner bass boost.

What I do not like
Slightly expensive for my liking.