I went with Dynamat, a bit pricier, but maybe 20 bucks over some of the other materials. Think I paid about $150 for a one-box quantity. This was about 6-7 years ago. Some left over material I put in the inside fender areas. Also used HVAC adhesive insulation on the doors. I had some reduction in noise, but my car is a droptop so there's - that, lol.