This stuff really makes a big difference in road noise. Installed in my street
rod and is a clean look and easy to install.

I drive a '99 Mazda 626 and have a 1200 watt JL Audio amp powering a 10" Punch Stage 1 (i will be upgrading all that stuff later). But anyways before i put in the Dynamat Trunk kit there was tons of rattle with the main problem coming from the license plate. So i cleared out my trunk, cleaned it up real good and after about an hour and a half i used up all 5 sheets. All in all it covered about 80% of my trunk. The only spot i really wish i could have got was the vertical face of the trunk lid. I got the horizontal face done, the main bottom floor, but couldn't get into the spare tire compartment. I also got the wheel well's covered. The hard part is covering bumpy or wavy surfaces. If you do end up with an air pocket and taking the sheet off doesn't sound like something you would enjoy you could take a knife and just cut a line in the air pocket and press the sides down. Yea it will give you a little gap but it's an easy process. Cutting the sheets are easy, almost as easy as paper, and the back (sticky side) is covered in a construction paper type deal so its really easy to mark lines for curving around obstructions. Well once complete i hooked everything back up, closed the trunk and blasted the system and big BIG time improvement. With the exception of that small piece of the trunk lid i couldnt get anything on there is no vibration period... this is good product and if your trunk is medium to large size i would maybe buy an extra sheet or 2 along with the trunk kit.

This is the first step in a complete sound system overhaul involving Clarion component speakers, Pioneer amplifier, and AudioControl LC8.

In all, I ordered the Trunk kit, 4 Door kits, and the Bulk Pack kit for my car.

The Dynamat was easy to install; the difficulty came when I did my doors, outer and inner skins.

I initially hesitated buying a door kit for each door, but figured since I had the panel off, might as well do it all.

I had enough left over to cover my dishwasher.

The difference of before and after was subtle, but noticable. My wife drives a 2007 Prius w/ JBL and w/o NAV, so I have something to compare against.

Prior to the install, I had difficulty noticing the tweeters, and would actually lower my head to their level when possible to hear the difference head position made.

After the install, I was able to notice the tweeters much easier and could hear the difference. I also could hear more from the woofers. The doors have a more "solid" sound when closing the door.

Additionally, tire noise was reduced, but again, subtly. I most notice a difference of having the Dynamat when alongside 18-wheelers; it's much quieter. The

The Prius, by nature, is silent at stop signs and lights. The cabin is much less "live" now.

I learned years ago what regular dynamat was capable of. I took my time
one evening and did the drivers side door thoroughly. The next day I went
for a drive and I swore my passenger side window wasn't all the way up. I
double checked and headed home and realized the Extreme Dynamat was
working superbly. As I did more and more of the car I could hear the
improvements immediately. It took 6-8 hours to do the rear but it is so
worth it. Different vehicles will show different levels of improvement. I might
not expect the drastic improvement in say a Lexus but in my Camaro it
made a big difference. I installed 2 12s and the box is bolted to the bottom
of the hatch well. No rattles are heard inside and outside it is minimal
even at full volume. Awesome product for those wise enough to appreciate
it.

the mat only covered half the trunk, if that, in a 03 regal. and on top of it i added the liscence plate damper, and the trunk still rattles alot but not that bad and not as near as it did. the dynamat does seem to make the bass have a little more umf in it though. overall not too bad just a lil pricey. i wnna give this a 3 1/2 rating.

after installing 2 kicker L5 15s in my 98 jeep cherokee limited, i was dB rated at 158.5. the rattles were so annoying, almost making it seem that my jeep would fall apart. i was running 3000 watts to the subs along with a 4 channel kicker amp for my components and highs. after have the dynamat extreme installed the rattles almost completely were gone, not to mention the amazing difference it makes on road noise and outside noise with the windows up. i have since had the system put back on a dB meter and it raising to almost 165 dB. Trust me on a couple things. Kicker is the best at what they do................and if you add a powerful sub-amp system to you vehicle, make sure before you do anything, add dynamat to the entire vehicle...even if this makes you have to wait a bit to add the subs (it can be costy to do an entire vehicle)......your subs, ears, and friends will all thank you in the end

Ok! So I just installed the Extreme Dynamat trunk kit on my 01' Hyundai Elantra GLS sedan. I have to say that the pros are a given, it has reduced the bad loud rattling every time my 12's hit a low frequency note or a hard punch (which depends on the music of coarse!). I began this project today around 5pm and finished by 9pm so a good 4 hours going back and forth on it.

My trunk is pretty small so it did not take as long as I would have expected... say 6-8 hours of work. The installation was... simply easy, had to take out the spare tire , the jack etc. Remember to wipe down and clean the trunk area where you want to stick the Dynamat to ensure the adhesive backing sticks. The tools I used was my handy dandy hair blow dryer, 1 inch hard wood roller and a utility knife as well as a Philip or flat screw drivers. If you would like a neater look, I tucked the cut out edges underneath the trunk carpeting.

The cons was the aluminum lining on the mat has caused mini cuts on my hands and fingers, very sharp edges so be careful while handling them! Your best bet is to measure out your nooks and crannies of your desired trunk space you wish to cover. Although, I started doing this but I got lazy along the way and just did a 'feel and cut' where intricate areas needed to be exposed.

Another thing to consider, as you begin applying the adhesive onto the surface. Ensure the curvy areas meet with the mat because there are air pockets that develop. I say this because when you start rolling and heating the mat down and you get to the mid section of the curvy areas. You come to find out that the mat is not actually sticking to that area which you would have to painstakingly pull up some part or the whole mat itself to push in the mat with the curvy areas and start all over again to apply it. So pay attention and ensure that every nook in there is covered and sticking!

Overall, I'd have to say it was a smart investment to increase my enjoyment and satisfaction of my loud thumps and bumps. The interior listening of my tunes are incredible and I will definantly purchase this product for future vehicles I buy. I highly recommend it!

I was skeptical never using this product or having a trusted reference. I had a terrible problem with Vibrating noises from my entire Trunk area, embarsing to say the least. I have coated all surfaces inside the trunk not 100% roughly 85% coverage rear deck, sides, bottom, Lid. Just for reference... My system is hitting 126db on Dance HipHop type music, and Dynamat helped a few db as well.
1. Rattles almost non-existant except at extreme volume and bass.
2. Music clarity increased noticably.

With much success so far I am now going to coat above Headliner, Doors to further reduce vibrating problems inside the vehicle and keep my music to myself. Windows up and System fully cranked there is not much evidense of the volume level being played.

Great Product
Easy to apply
Very effective

I did not know how much Vibrating metal destroys your Music expierence !!!

I purchased the Xtreme trunk kit for a 1970 pontiac GTO knowing there wouldn't be anywhere near enough mat to cover the trunk. I managed to cover the inside of both rear quarter panels and about half of the floor. The difference was great considering half of the trunk is still exposed sheet metal. My 12'' sub sounds tighter and louder inside the car and rattling was reduced quite a bit. Weight is reduced from the original dynamat but it's not any easier to work with. Plan your install out if you are using just one trunk kit and when you're done expect some good improvements.