while this part is made for the underside of the hood, it's precut to a perfect size for the trunk (at least for my vert). I placed mine under the carpet, directly over the spare tire. I bent about a 1/4 upwards, covering the tail light area. Made a dramatic difference in road noise, considereing that I have DP's+TP's+$tillen 4" tip exhaust. The Dynamat Hood Liner weighs next to nothing and can be picked up for around $50-60 on eBay.