Andrew D used a 80 sqft Damplifier Pro Sedan Pack to cover the doors, floor, trunk, and back hatch with complete coverage.

Andrew's Subaru Impreza Full Car Sound Deadening Project
Subaru floor stripped and cleaned all ready for that butyl treatemnt.
WOW, what a difference that black on black foil makes inside of this ride...so sexy!!!
Passenger side and back seat floor all cleaned and ready.
The full cabin floor with about 35 sqft of Damplifier Pro for 100% coverage.
Rear seat area of the car stripped and cleaned with denatured alcohol.
Rear seat area looking real good and quiet. We recommend cutting out around the access ports in this area as most times they are for the fuel tank or fuel pump access points.
Left side of the trunk/hatch area on the car skinned with about 20 sqft total of Damplifier Pro in the trunk.
Right side of the trunk/hatch area of this Subaru fully skinned with Damplifier Pro. Wheel wells are very important to cover with 100% coverage even if you are only doing 40-60% coverage in other areas of the vehicle, don't skimped on the wheel wells.
Rear hatch lid covered with about 8 sqft of Damplifier Pro.
Driver's side front door skinned with 6 sqft of Damplifier Pro, making cut outs for the lock mechanisms and other items to keep them fully functional.
Passenger side front door skinned with Damplifier Pro.
And don't forget those rear doors, they need that Second Skin love too....great looking work Andrew.