I've used Streetwires mat and Hush Mat both work really good, but there is a price difference for sure. The lighter weight the stuff the less it does, and it needs the weight to reduce the vibration. However you don't need to cover every panel like me and a few others have to make a difference.
The other one you can try, not sure what pricing is like for you in the US, but Boom Mat from DEI, not the audio company. These guys,
Boom Mat Acoustical Products | Exhaust Header Wrap and Thermal Performance Products | Design Engineering, Inc.