Product Code: SK-2 Price: Check Latest Cascade Sound Dampening Products Compare to Dynamat 10115 Original Speaker Kit or Dynamat 10415 Xtreme (2- 10" x 10" pieces of Xtreme) Speaker Kit* The SK-2 (Performance Speaker Kit) is an upgrade kit.  Two 10"x10" pieces of V-MAX plus two 7 inch Deflex Powerpads.  Place the Powerpads behind your speakers to wipe out cone breakup and distortion.  Deflex Pads will help tighten up your midbass and improve your soundstage.  Treating your doors will damp unwanted vibration and block road noise. You'll be amazed at the dramatic improvement in sound quality from door mounted speaker systems. Install it today and hear what you've been missing! This kit is the ultimate speaker enhancement. This is a vinyl Based Sound Damping product   Why is Vinyl superior to asphalt?     Vinyl doesn't give off offensive odors, which are especially noticeable as the temperature increases Vinyl is lighter in weight, yet offers equal or superior damping ability Vinyl bends and stretches without cracking or recoiling, and applies without a heatgun