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Old May 9, 2023 | 11:56 AM
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How many C7 owners have installed Blockit mat in their cars?
What are your opinions about this product?
I’m thinking of buying it and installing it under the rear compartment mat in my Coupe
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Old May 9, 2023 | 12:11 PM
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Manage expectations. If you’re expecting a night and day change, you won’t get it.

In my pseudo scientific before/after testing I got maybe 1-2-db drop in noise at only certain frequencies. To my actual ears, the difference was almost imperceptible. This is with stock widebody tire sizes in the Super Sports. Perhaps a Stingray rolling on all seasons might see a bigger difference?

But, it’s reasonably cheap and easy to take out if I need to (drop weight for racing). So it was worth it for me.
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Old May 9, 2023 | 12:30 PM
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Ride with what you've got!... You'll eventually tune your ears to what you've got and your sensitivity will blend to normalcy.
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Old May 9, 2023 | 01:22 PM
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Tried it & no difference Save your money.

Last edited by xtroms; May 9, 2023 at 01:28 PM.
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Old May 9, 2023 | 01:34 PM
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I have it in my Z51. I measured 2db lower using my phone. It is a little quieter but it's not a cure all.

Real sound deadening under the interior will help a lot more and I plan to do that eventually.
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Old May 9, 2023 | 02:58 PM
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Originally Posted by vortech347
I have it in my Z51. I measured 2db lower using my phone. It is a little quieter but it's not a cure all.

Real sound deadening under the interior will help a lot more and I plan to do that eventually.
Thanks everyone for your input. I think I may just lift the rear carpet and add some Dynamat add the carpet mat for the dog and call it a day.
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Old May 9, 2023 | 05:40 PM
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I have installed it, and as posted, it slightly reduces overall noise. There is still tire noise due to the short distances from the tires to the cabin.
I found it useful in lowering the low frequency drumming from the cargo floor bouncing off the rear window. Glad I got it.
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Old May 10, 2023 | 01:11 AM
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GROSSLY over priced and has little effect. I'd never buy it again. Just sayin'... since you asked.
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Old May 10, 2023 | 07:11 AM
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Dynamat is the way to go
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Old May 10, 2023 | 09:18 AM
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I have both Crazy Cowboy insulation and blockit and it's still noisy. Thinking about changing to non runflats. I ran them in the C5 for over 60k even driving on gravel roads with no issue.
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Old May 10, 2023 | 09:45 AM
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Originally Posted by Rabbi
I have both Crazy Cowboy insulation and blockit and it's still noisy. Thinking about changing to non runflats. I ran them in the C5 for over 60k even driving on gravel roads with no issue.
Non runflats will help a lot.

How much do you thing the Crazy Cowboy kit helped?
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Old May 10, 2023 | 02:15 PM
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Not to hijack the thread, but as a PSA I was agnostic on runflat/non runflat tires till a sidewall split on a 4000 mile runflat tire late on a Saturday night on a sparsely traveled mountain road 40 miles from home with 0 - 1 cel phone bars. After driving home and then to Discount Tire on Monday to replace the tire, I became a ZP true believer, and will live with any additional noise they produce.

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Old May 10, 2023 | 03:35 PM
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I have it in mine and can't tell the difference. My wife thinks she can, but I think it's just purchase bias on her part.
Whenever she buys something she tends to want to "think" its the best regardless if it is or isn't. I never say anything. As they say. Happy wife. Happy life.
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Old May 11, 2023 | 04:34 PM
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I think it makes a noticeable but small diff in my C7 ZO6. To do this right, you have to remove seats and carpet and cover everything in noise reduction mat. I've tried several brands and found the best to be Siless two layer.

The installation is a royal pain - prob takes a long weekend - but the results are worth it.

There are a couple of You Tubes on the install. Watch them before you start.
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Old May 11, 2023 | 05:54 PM
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There is a good video on sound deadening on Youtube. I used it and I added a full bill of materials to do it in the comments. (mine is a convertible not a coupe).

If you do that the temperature and sound is improved. Is the sound night and day difference? No but is certainly improved.

Ken
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Old May 12, 2023 | 11:59 AM
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Crazy Cowboy insulation made a big difference along with all season run flats.
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Old May 12, 2023 | 02:58 PM
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I had the Original Block-it in my C6 and now using it in my C7.
IMO I noticed it takes the edge off the noise.
I also put a layer of 1/4 inch Blue foam in the C7 under the Block-it which helped slightly more.
Bottom line, its not a cure all.
Only way to reduce the noise dramatically, is with the Crazy Cowboy option, or material/s of the same and DIY.

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Old May 12, 2023 | 03:07 PM
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Originally Posted by joemessman
I have it in mine and can't tell the difference. My wife thinks she can, but I think it's just purchase bias on her part.
Whenever she buys something she tends to want to "think" its the best regardless if it is or isn't. I never say anything. As they say. Happy wife. Happy life.
Didn't you get to do a comparison of new runflats vs new non-runflats on one of your 'vettes?
Results?
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Old May 12, 2023 | 04:00 PM
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Originally Posted by Discount Tire
@jimmbbo thank you for the recognition and thank you for your business. We appreciate your support.
Been a satisfied customer for over 20 years - DT is a well run service business where customer service matters.
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