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Has anyone used this on their coupe?
My GS is noisy because of the run flats on the rear.
I thought this might help but it looks like most vendors are out of stock.
Does that mean this wasn't a good buy?
Thanks in advance for your help.
It helps. I have one for my Z51 and made a noticeable difference. The car is still loud but not nearly as bad. I tried to measure the difference using my cell phone and got about 2db difference. Not very scientific but my ears say the car is quieter.
I have a Lloyd's mat on top of the block it mat, too.
My next step is to do Crazy Cowboy's kit or similar.
The best I can say for it is that it keeps things from sliding around in the rear pretty well. Mine also came with the pieces for behind the seats... that show... so, I radius-cut the top corners so they didn't look so much like some sort of scrap material stuck behind the seats.
(btw, an "Advanced search" across the C7 Forums should find quite a few threads about it)
You could do the low-dough method like I did using Frost King insulation foam. It’s available at Home Depot or Lowes. I did the rear first and eventually the rest of my car. Not very expensive. It was a fun project. Not only is it quieter now, it stays much cooler.
Last edited by stevettec7; Jul 18, 2022 at 02:50 AM.
One simple thing I did that works fairly well to reduce road noise, was a 40 x 72 moving blanket from HF for about $6. Folded it in half and laid in the hatch. It doubles as a carpet protector and/or something to wrap other stuff to protect it. Certainly not as good as doing serious insulation, but quick and easy to replace if need be. Had one in my C6 too and used it for a blanket once when doing a roadside under car repair.
Replacing the 19 and 20 OEM runflats with 18 and 19 Continental non-RF's made a huge difference re: sound. and smoothness.
One simple thing I did that works fairly well to reduce road noise, was a 40 x 72 moving blanket from HF for about $6. Folded it in half and laid in the hatch. It doubles as a carpet protector and/or something to wrap other stuff to protect it. Certainly not as good as doing serious insulation, but quick and easy to replace if need be. Had one in my C6 too and used it for a blanket once when doing a roadside under car repair.
Replacing the 19 and 20 OEM runflats with 18 and 19 Continental non-RF's made a huge difference re: sound. and smoothness.
I have had the Harbor Freight blanket but it is not noticiable if it reduced the noise.
Last edited by LenWoodruff; Jul 19, 2022 at 07:31 AM.
You could do the low-dough method like I did using Frost King insulation foam. It’s available at Home Depot or Lowes. I did the rear first and eventually the rest of my car. Not very expensive. It was a fun project. Not only is it quieter now, it stays much cooler.
this looks like a great way to insulate without spending a fortune! on the list of things needed to do
BlockIt Cargo Mat for Coupe
Mine also came with the pieces for behind the seats... that show... so, I radius-cut the top corners so they didn't look so much like some sort of scrap material stuck behind the seats. 
