Quick review:
I used about 26-ish square feet of material for the two doors (outer panel plus inner panel) and the rear firewall and 3/4 bulkhead area. I have NOT done any of the floor, wheel wells or roof. With these three areas under 50mph it is very noticeable how much more quiet the car is. Above that speed and on concrete highways the Cup 2 tires kind of take over but the frequency of the road noise is different, much more easy to hold a conversation. Doors have a nice solid heft when you shut it, and for the brief moment the new speakers were turned on they sounded amazing (fake engine noise issue being pumped in resulted in disconnecting).
This was about 16lbs of material I used and very much worth it. It has a mass layer, foam layer, metal layer in a thinner product than doing all three separately. They certainly are priced on the high end of the market but results are great...sure you could find cheaper similar products, even the Amazon brand.
On the easy weight savings (battery, seats, wheels, ti exhaust, downpipe) I'll be at -130lbs so don't mind the weight for the benefit. Highly recommend -
