The best dynamat now is max its way$$$. But the problem with Dynomat is its to damn heavy for a sports car. Unless you dont care about performance. For me 150Lbs of dynomat wasnt an option. But you can use spray sound deading material in the doors, floor, and body pannles and back it up with sheets of Vb3 and Vb5 sheets of sound damping material. It is molded with a heat gun and works very well. With the spray and sheets it comes real close to dynamat max but only weighs about 25Lbs on my coupe. For more info on this pick up a copy of import racer thay have a write up on a 800hp supra that use the same set up. Its worth it but if you dont plan on stero comp. or if you are not a serious autophile its a lot of money and time. Hope this helps.