FREE! GTMat Automotive Sound Deadener

Huckleberry · 08-20-2012, 04:57 PM

Quote:

Originally Posted by GTMat

Any updated reviews out there?

I heard a rumor that we might have some new products available for testing.

what new products?

GTMat · 08-20-2012, 05:03 PM

Quote:

Originally Posted by Huckleberry

what new products?

All I heard was "liquid".

I'll be sure to keep you guys updated.

vermithrax · 08-20-2012, 04:49 PM

Still working on getting mine installed. I will post a review and photos, and a review on amazon as soon as I get the time to get it put in.

Huckleberry · 08-20-2012, 05:56 PM

is there a waiting list?

bigdog1250 · 08-20-2012, 06:56 PM

FYI, I installed the 10 sq. ft. sample this past weekend and shot some video. Not sure when I'll have it edited and ready to post but it should be sometime mid week.

Results:

- Installed in the trunk
- Noticeably quieter at idle
- Really easy to install and adhere
- Sample came in just a few days, great customer service!
Used an iPhone app as a basis to measure the decibel levels before and after. At idle before = 56, after = 52

The main reason I wanted to test the deadening material was to reduce the drone created by my F.I. exhaust at about 70mph (2800rpm) on the freeway. When you step on the gas a bit there is a tone that reverberates in the cabin and is kinda annoying. While I don't mind it much, my passengers do.

@70 mph before the install = 77-82 decibels, after = 77-78.

So there was a measurable difference, however it wasn't really noticeable to me, at least not while on the freeway. I'm sure if I installed some more in the roof/hatch area, it would greatly help.

All video and measurements were taken on the same roads and measured multiple times, so it should be fairly accurate.

ericzmyers · 08-20-2012, 10:26 PM

i bought and installed 50 sqft. pulled the whole interior and got it done in a day.

- Product was easy to work with.

- roller was absolute garbage. Broke within and hour, too much with the man hands i guess. i bought a tool box caster and used that to roll a majority of the product flat.

- there has been a little odor in the car here and there but barely noticeable.

GREAT PRODUCT, WELL WORTH THE PRICE.

SEND ME MORE STICKERS!

thinking of buying a little bit more and doing the roof.

Cmike2780 · 08-21-2012, 09:01 AM

I installed the sample you guys sent over the weekend and didn't get a chance to drive the car until today. Since 10 sq.ft. isn't a whole lot to work with, I applied it to where I thought most of the noise was coming from, the rear wheel wells. 10 sq.ft. was enough to cover both sides, with a little left over. If you guys get just the sample to try it out, I suggest this area because you do reduce a noticable amount of road noise. It just about knocked out those little "ticking" noises hitting the wheel well when driving over not so clean road. It might just be me, but my exhaust also sounds "cleaner" since I'm not hearing as much road noise.

I'll definitely order more of this stuff in the future. I just need to set aside time to do it because it can be time consuming to install. Overall, the product does work, but there are other areas that need to be addressed.

I'll add some pics later.

GTMat · 08-21-2012, 10:35 AM

Quote:

Originally Posted by Huckleberry

is there a waiting list?

Not just yet, but we will definitely let you 370Z guys know about it once available!

Quote:

Originally Posted by bigdog1250

FYI, I installed the 10 sq. ft. sample this past weekend and shot some video. Not sure when I'll have it edited and ready to post but it should be sometime mid week.

Results:

- Installed in the trunk
- Noticeably quieter at idle
- Really easy to install and adhere
- Sample came in just a few days, great customer service!
Used an iPhone app as a basis to measure the decibel levels before and after. At idle before = 56, after = 52

The main reason I wanted to test the deadening material was to reduce the drone created by my F.I. exhaust at about 70mph (2800rpm) on the freeway. When you step on the gas a bit there is a tone that reverberates in the cabin and is kinda annoying. While I don't mind it much, my passengers do.

@70 mph before the install = 77-82 decibels, after = 77-78.

So there was a measurable difference, however it wasn't really noticeable to me, at least not while on the freeway. I'm sure if I installed some more in the roof/hatch area, it would greatly help.

All video and measurements were taken on the same roads and measured multiple times, so it should be fairly accurate.

Bigdog, thanks for the review! Glad to hear that product did help out even if only on a small scale. If you need to order more to complete the project, please let me know so that I can get you a discounted price.

Quote:

Originally Posted by ericzmyers

i bought and installed 50 sqft. pulled the whole interior and got it done in a day.

- Product was easy to work with.

- roller was absolute garbage. Broke within and hour, too much with the man hands i guess. i bought a tool box caster and used that to roll a majority of the product flat.

- there has been a little odor in the car here and there but barely noticeable.

GREAT PRODUCT, WELL WORTH THE PRICE.

SEND ME MORE STICKERS!

thinking of buying a little bit more and doing the roof.

Hi Eric, sorry about the roller issue! We are making the switch fairly soon to a more durable product.

If you need to make a purchase to complete your project, I can definitely work out a discount. And sure, we can send more stickers with it!

Quote:

Originally Posted by Cmike2780

I installed the sample you guys sent over the weekend and didn't get a chance to drive the car until today. Since 10 sq.ft. isn't a whole lot to work with, I applied it to where I thought most of the noise was coming from, the rear wheel wells. 10 sq.ft. was enough to cover both sides, with a little left over. If you guys get just the sample to try it out, I suggest this area because you do reduce a noticable amount of road noise. It just about knocked out those little "ticking" noises hitting the wheel well when driving over not so clean road. It might just be me, but my exhaust also sounds "cleaner" since I'm not hearing as much road noise.

I'll definitely order more of this stuff in the future. I just need to set aside time to do it because it can be time consuming to install. Overall, the product does work, but there are other areas that need to be addressed.

I'll add some pics later.

Hey Mike, we'd like to know about the other issues you had if possible. Thanks for giving us a shot and thanks for your review and upcoming pictures! Same as the guys above, contact me for discount prices when ready to order.

I'm sure I've posted it lots of times already but if any of you could provide your reviews on our Amazon listings, we would greatly appreciate it! Listings can be found here: GT Sound Control @ Amazon.com:

Cmike2780 · 08-21-2012, 10:56 AM

Quote:

Originally Posted by GTMat

Hey Mike, we'd like to know about the other issues you had if possible. Thanks for giving us a shot and thanks for your review and upcoming pictures! Same as the guys above, contact me for discount prices when ready to order.

Sorry, I meant other noise issues with the car, not your product.

GTMat · 08-21-2012, 11:22 AM

Quote:

Originally Posted by Cmike2780

Sorry, I meant other noise issues with the car, not your product.

Awesome then!

Huck · 08-22-2012, 10:17 AM

Yeah I can confirm those numbers, I used a studio db meter and on average it cut out 3db at idle, and 5-6db at 70mph. Not bad for just 10sqft of the 50mil. Image what it would sound like if you had 100sqft of the 80mil!

Sent from my iPizzle using magic and new-fangled science stuff

edub370 · 08-22-2012, 10:20 AM

i cant wait till i get a free minute to put mine in

SoFloZ · 08-22-2012, 10:22 AM

Would this help for my drone from the shorties

GTMat · 08-22-2012, 10:25 AM

Quote:

Originally Posted by SoFloZ

Would this help for my drone from the shorties

Sure will! Give me a call to get your sample sent out! 1-855-487-6865

snea · 08-22-2012, 11:43 AM

I was able to complete the GTMat installation yesterday. First, I apologize for the grainy pics and bad lighting. It was raining both days while I did this so I just left the car in the garage.

Removing the interior panels:

Everything removed (the next day lol):

GTMAT installed!

I did have a few leftover strips that I slapped over the wheel wells after the last pic. Using the 10 sq. ft. I was able to cover maybe 1/2 the hatch area. It looks like more, but there is a lot of vertical surface left uncovered. The product is pretty easy to work with and total installation time probably ran 2.5 hours. I'm sure I could go quicker now after working with the product and understanding how to remove all the interior panels. I was able to mold it into place without much trouble leaving very few points where contact isn't 100%. I can't say I'm looking forward to completing the job since the remaining areas are going to be more difficult, but after hearing the results of partial coverage, it is something I plan on doing.

My exhaust is pretty loud, and the tire/wheel combination definitely adds to the road noise. I only have the base stock sound system (something else on the to-do list) so I can't comment on any improvement there. Upon starting the car, I immediately noticed the exhaust was slightly quieter inside the cabin. The road noise reduction was also apparent, but not as noticeable. I didn't measure decibels, but there was some noticeable improvement from partial coverage on a very loud car. I do believe the additional reduction in noise with 100% luggage and door coverage will be worth it and would be even more so for a stock Z.

I may wait a couple of months for the weather to cool off and hopefully do some speaker replacement at the same time, but I will be completing the job using GTMat.

08-20-2012, 05:56 PM	#4 (permalink)
Huckleberry Enthusiast Member Join Date: Apr 2012 Location: Los Angeles Age: 40 Posts: 410 Drives: Z Rep Power: 14	is there a waiting list? __________________

08-20-2012, 06:56 PM	#5 (permalink)
bigdog1250 Track Member Join Date: Nov 2008 Location: San Francisco Posts: 846 Drives: 991.2 GT3 Rep Power: 18	FYI, I installed the 10 sq. ft. sample this past weekend and shot some video. Not sure when I'll have it edited and ready to post but it should be sometime mid week. Results: - Installed in the trunk - Noticeably quieter at idle - Really easy to install and adhere - Sample came in just a few days, great customer service! Used an iPhone app as a basis to measure the decibel levels before and after. At idle before = 56, after = 52 The main reason I wanted to test the deadening material was to reduce the drone created by my F.I. exhaust at about 70mph (2800rpm) on the freeway. When you step on the gas a bit there is a tone that reverberates in the cabin and is kinda annoying. While I don't mind it much, my passengers do. @70 mph before the install = 77-82 decibels, after = 77-78. So there was a measurable difference, however it wasn't really noticeable to me, at least not while on the freeway. I'm sure if I installed some more in the roof/hatch area, it would greatly help. All video and measurements were taken on the same roads and measured multiple times, so it should be fairly accurate. __________________ 350z / 40th 370z / C6 Z06 / BMW M4 / V10 R8 / C7 Grand Spot / 997.1 GT3 / S2K / Camaro ZL1 / 718 GTS / 991.2 GT3 Last edited by bigdog1250; 08-20-2012 at 06:59 PM.

08-20-2012, 10:26 PM	#6 (permalink)
ericzmyers Base Member Join Date: Feb 2012 Location: port hueneme ca Posts: 70 Drives: 2011 Silver 370Z Rep Power: 14	i bought and installed 50 sqft. pulled the whole interior and got it done in a day. - Product was easy to work with. - roller was absolute garbage. Broke within and hour, too much with the man hands i guess. i bought a tool box caster and used that to roll a majority of the product flat. - there has been a little odor in the car here and there but barely noticeable. GREAT PRODUCT, WELL WORTH THE PRICE. SEND ME MORE STICKERS! thinking of buying a little bit more and doing the roof. __________________ Eric Z. Myers 2011 370Z, Silver, Sport, K&N short ram intake, Fast Intentions Exhaust, Pioneer AVIC, ORACLE Lighting LED Halo Kit, Tinted.

08-21-2012, 09:01 AM	#7 (permalink)
Cmike2780 A True Z Fanatic Join Date: Jun 2010 Location: Long Island Posts: 5,059 Drives: slowwww Rep Power: 30	I installed the sample you guys sent over the weekend and didn't get a chance to drive the car until today. Since 10 sq.ft. isn't a whole lot to work with, I applied it to where I thought most of the noise was coming from, the rear wheel wells. 10 sq.ft. was enough to cover both sides, with a little left over. If you guys get just the sample to try it out, I suggest this area because you do reduce a noticable amount of road noise. It just about knocked out those little "ticking" noises hitting the wheel well when driving over not so clean road. It might just be me, but my exhaust also sounds "cleaner" since I'm not hearing as much road noise. I'll definitely order more of this stuff in the future. I just need to set aside time to do it because it can be time consuming to install. Overall, the product does work, but there are other areas that need to be addressed. I'll add some pics later. __________________ [09][MB][6-Spd MT][Touring][Stillen Gen III][K&N][Borla CBE][Evo-R] [ArchitTEK Photography]

08-22-2012, 10:17 AM	#11 (permalink)
Huck A True Z Fanatic Join Date: Jan 2012 Location: Cocoa, Florida Age: 42 Posts: 5,075 Drives: Pantydropper machine Rep Power: 34	Yeah I can confirm those numbers, I used a studio db meter and on average it cut out 3db at idle, and 5-6db at 70mph. Not bad for just 10sqft of the 50mil. Image what it would sound like if you had 100sqft of the 80mil! Sent from my iPizzle using magic and new-fangled science stuff __________________ VLEDS \| Evo-R \| Moddiction \| CF Hood Struts \| F.I. CF CBE & LTH \| Stillen CAI \| NST Pulleys \| UpRev \| Z1 \| M7 \| Status \| Forgestar \| PSS \| Whiteline \| SPL \| SPC \| Kenwood \| Zenclosure \| Kicker \| Alpine Type R

08-20-2012, 04:49 PM	#3 (permalink)
vermithrax Base Member Join Date: Apr 2012 Location: Houston Posts: 128 Drives: 11 370z/sport silver Rep Power: 14	Still working on getting mine installed. I will post a review and photos, and a review on amazon as soon as I get the time to get it put in.

08-22-2012, 10:20 AM	#12 (permalink)
edub370 A True Z Fanatic Join Date: May 2011 Location: KCMO Posts: 3,458 Drives: 09 370z S/T 6MT Rep Power: 21	i cant wait till i get a free minute to put mine in __________________ 09 370Z ST 6MT//Injen CAI//Greddy CBE//TP//TSW's//Swifts//Stillen lip//Whiteline sways 326whp/268tq

08-22-2012, 10:22 AM	#13 (permalink)
SoFloZ Base Member Join Date: Mar 2012 Location: Pembroke Pines Posts: 116 Drives: 12 Gun-Grey Manual Rep Power: 14	Would this help for my drone from the shorties

08-22-2012, 11:43 AM	#15 (permalink)
snea Base Member Join Date: May 2012 Location: Panama City Posts: 44 Drives: Blue 370Z 6M Rep Power: 14	I was able to complete the GTMat installation yesterday. First, I apologize for the grainy pics and bad lighting. It was raining both days while I did this so I just left the car in the garage. Removing the interior panels: Everything removed (the next day lol): GTMAT installed! I did have a few leftover strips that I slapped over the wheel wells after the last pic. Using the 10 sq. ft. I was able to cover maybe 1/2 the hatch area. It looks like more, but there is a lot of vertical surface left uncovered. The product is pretty easy to work with and total installation time probably ran 2.5 hours. I'm sure I could go quicker now after working with the product and understanding how to remove all the interior panels. I was able to mold it into place without much trouble leaving very few points where contact isn't 100%. I can't say I'm looking forward to completing the job since the remaining areas are going to be more difficult, but after hearing the results of partial coverage, it is something I plan on doing. My exhaust is pretty loud, and the tire/wheel combination definitely adds to the road noise. I only have the base stock sound system (something else on the to-do list) so I can't comment on any improvement there. Upon starting the car, I immediately noticed the exhaust was slightly quieter inside the cabin. The road noise reduction was also apparent, but not as noticeable. I didn't measure decibels, but there was some noticeable improvement from partial coverage on a very loud car. I do believe the additional reduction in noise with 100% luggage and door coverage will be worth it and would be even more so for a stock Z. I may wait a couple of months for the weather to cool off and hopefully do some speaker replacement at the same time, but I will be completing the job using GTMat.

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