I think the best way to go is the bulk pack, 120.00 36sqft . They have custom cut kits, but big money. I will buy three of thease and do the hole car, and save money over a custom cut kit. Iv already done body bushings, weather seals, window felts. That old camaro sounded like a bucket of loose bolts when going down the road! O ya going to chuck them air shocks also, went from mono leaf to a five leaf. The only thing I want to hear is the tune of a lumpy big block.