Dynamat 10435 Four 12" x 36" PCS Xtreme Door Sound Dampening Kit

Dynamat Xtreme Door Kit 10435

Xtreme Door Sound Dampening Kit with Four 12" x 36" Pieces

Xtreme Door Sound Dampening Kit with Four 12" x 36" Pieces

• Xtreme Door Sound Dampening Kit
• Contains Four 12" x 36" Pieces
• Self-Adhesive Design
• Includes Enough Material for Two Standard Size Doors
• Adds SPL to your Vehicle
• Reduces Door Panel Vibrations


List price $146.95
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Dynamat Xtreme Door Kit 10435

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Dynamat Xtreme Door Kit

Dynamat Xtreme is a patented, lightweight elastomeric butyl and aluminum constrained-layer vibrational damper. The Xtreme Series adapts and conforms easily to sheet metal and other hard metals vehicles are made of. This material works best for temperature ranges between 14° – 140° but can withstand ranges between -65° - +300°.

Xtreme Applications

The Xtreme Door Kit is great for improving the overall sound quality in your vehicle by cutting out unwanted road noise. It is typically used on vehicles to reduce vibrations and rattles on the doors of your car. This kit comes in four 12" x 36" sheets combining for a total of 12 square feet which should be plenty cover the doors in your vehicle.

Easy to Install

Use scissors, a knife or a die to cut the Xtreme to the desired size and shape before removing the release liner. Next, remove dust, grease, moisture, and other foreign matter from the application surface. Now it’s time to peel off the release liner and start applying. The easiest way to apply is to bend the mat slightly and attach it along its shortest edge. Using a roller, press the mat tightly into place, the roller will help eliminate unwanted air pockets. There is no need for heating the material, for best results the application surface should not be below room temperature.

Product Features
  • Xtreme Door Sound Dampening Kit
  • Contains four 12" x 36" pieces
  • Includes enough material for two standard size doors
  • Creates a sonic barrier restoring 3, 6, even 12 dB of lost dynamic range
  • Self-Adhesive design requires no heat for installation
  • For proper installation, use the Heavy Duty Roller Tool
  • Adds SPL to your vehicle
  • Improves bass quality
  • Reduces bass distortion
  • Reduces door panel vibrations
  • Reduces road noise
Sound Damping Specifications
Installation Location
Material Thickness
Total Amount of Material
12 square feet
Material Use
Vibration Dampener
Products related to this item
Warranty and Return Policy
Parts Warranty Duration
Not warranted
Labor Warranty Duration
Not warranted
Warranty Provider
Dynamat Xtreme Door Kit 10435

Dynamat Xtreme Door Kit 10435



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By feature average rating



June 30, 2010

Put it 'IN' the doors as well....

Dynamat Xtreme makes a huge difference in reducing road noise and in keeping the sound within the confines of the vehicle. Don't cheap out either. Buy enough to line the 'inside' pockets of your doors. Before doing so I got a tinny, tip tip tip sound while tapping the outside door whereas after I got a nice heavy THUD! Also, remember to install it on a cool day or at night so if you misplace the sheet you can easily peel it off and re-do. By the next day this stuff holds with a death grip. See it installed on my build here.


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January 19, 2007

great product.

I highly reccomend you have this professionally installed.it works great but if you install improperly you will not get the benifits it offers plus any car repairs can be a lot spendier due to technicians having to work around it.


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March 8, 2012

Good Quality Product.

I used this kit to cover both doors in my S-10 Blazer (its a 2 door) and it went in just fine. This would be a weekend type project, something to just take your time with and work out any air bubbles. It gives my truck that solid door feel. No more rattles.


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October 16, 2011

good stuff

I've always heard that you need to sound deaden a vehicle for best sound, but I never thought it would make a big difference. Well Now Im a believer. It made the radio louder and cut down on road noise too.


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July 1, 2013

Can't go wrong with dynamat

If your going to put high end speakers in your doors, you need to have sound deadening for optimal sound. I'd recommend any dynamat product as the different kits just provide different options for where you want to apply it. Great product and its at a good price.


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September 2, 2009

Great product but not enough!

Great product! Installed in my 2008 Altima Sedan. It reduced road noise and speakers in doors do not rattle for me to appreciate the details of my music. Only concern is there seems not to be enough product in the kit according to my installer for full coverage. The same for the trunk kit. Definitely a must to complete a good sounding stereo system. Expensive as hell in retail store but Sonic offers it at a good price that I can afford.


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March 25, 2009

Dynamat Extreme Stuff

Wear gloves when installing! This product is only worth the money paid for it at Sonic Electronix. I cannot say the difference in the sound quality is even noticeable. I installed Dynamat thoroughly in the front door inner steel panels on my wife's Focus. The back I did not. All 4 speakers installed are identical Alpines. One in each of the 4 doors.
I cannot tell the difference in sound quality. Alpine head unit driving all 4 speakers and no others.

The car as a whole seems a bit quieter and more "solid" with the Dynamat, but I seriously doubt the efficacy of the product for audio reproduction purposes.

If extraneous rattling/vibrating noises are your problem, duct tape and/or chimney roof flashing will be just as effective and cheaper.


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October 24, 2012


Dynamatt is still king in my opinion. In my last install I put it up against the hype of Peel n Seal from hardware store being just as good. Its not. Dynamatt much thicker so more effective and zero odor. Peel n seal will not smell as long as its used in a way that all adhesive bitumen is making full contact. If its used to cover door openings as in sealing, it will smell. Dynamatt is expensive but buying from this site is about 40percent cheaper than Worst Buy. I feel its worth the expense.


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August 23, 2010


Added to front doors and the car is much quieter! Super happy with the difference.


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October 26, 2010

really works

this is a great option to increasing spl sound quality makes a huge difference in my 61/2s im hearing notes from they i didnt before


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March 11, 2009

This is a must

Great product from a great company. This is an absolute must when installing door speakers. Without it you are throwing performance away.


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April 16, 2012

best value

If you going to use sound damping around your speaker you should go ahead and do the whole door it dosen't cost much more, and get the dynaliner too.


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October 17, 2007

good for multiple uses

I have this kit installed on my 2005 Dodge ram under my box with two 10" subs. It shields any rattling around the box which I built into the cab under the rear seats.
You can use the strips anywhere - very flexible.


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May 13, 2012

Works great

I am running 2 sundown audio 12s in a ported box tuned at 29hz running off a Hifonics brutus 2400 amp and I have flex. And lots of it. But I have 0 squeeks or rattles and the Dynamat has cut down some of the flex, I'd hate to see the flex without the Dynamat. Haha. But I had enough to cover the front two doors completely in a 98 gmc Sierra (big doors) and I covered about 80% of the back wall of the cab under the back window and I still have one whole sheet left. This stuff is great and a good price for what It is. However, the metal aluminum looking stuff is very sharp on the edges so look out for that. You can install it without the roller, but I'm sure the roller helps out a ton.


found this helpful.


August 8, 2010

Highly recommended

I noticed a huge difference in the amount of bass out of my speakers after lining the doors with this. I'm only running off of two 6x8's in the back and it sounds like i have a sub. I highly recommend that you get this to complete any speaker install


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Xtreme Door Sound Dampening Kit with Four 12" x 36" Pieces


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