Good after Market Heat and Sound Deadener for firewall and Floor.

Hello I'm in need of a Good after Market Heat and Sound Deadener for firewall and Floor.
This is no numbers matching 100 point car so after market is requested over OEM.
Looking for a fairly good inexpensive Deadner to put under the carpet. (other than Dynomat$)
Just looking for good suggestions..

Thanks
X-MAT Sound Damping Auto Insulation 18"x31" - Eastwood I know my buddy used this from Eastwood.