I spent a couple of hours yesterday applying
Dynamat Extreme to the bulkhead behind my
seats. No pics, as I am sure you have seen
it all before. Amazon had a great price of
$142.00 for 36 sq feet.

I Lifted up the carpet as instructed on previous
posts. I cut and shaped sheets to the entire
bulkhead and each side wall as far as I could
reach, forward.

I slid pieces under the carpet floor, forward, as
far as they would go. I also tucked black foam
rubber I had under the Halo trim. It had a
lot of room with hand movement and space
so I thought this would help.

A point on the Dynamat installation. Only
peel part of the backing off before
application. This gives you more control
over placement. Also, go with half sheets
if you are covering a large area with
cramped spaces. Again, this is for control.
Ever wrestle a gorilla?
Use Dynamat tape for any spaces. Get
the wood roller to smooth it out.

I got everything back in place. I have done
no insulation in the cargo area yet. I went
on a one hour drive on my city and tollway
roads here in Dallas.

The biggest thing for me was a loss of a
low pitched, coarse vibration in the back of
my neck while driving. The tire noise was more
outside the car now and the road bump
vibration was at least 50% decreased.
The Bose stereo sounded much better,
clearer, more depth in the music. By the
way, I am not a Bose fan.

I recommend this mod to anyone. I am
not pushing Dynamat, but after all my
reading, it seemed the best to try for a
one time install. I am inherently lazy.
I will do the cargo area next. I am also
still considering a Block-It on top of
this install after Dynamat is complete.

 

Thanks for the feedback!

 

Did you use all 36 sq. ft.? I am looking to do the same.

 

No. I only used about 2.5-3.0
sq feet on the bulkhead.
Plenty left to begin the cargo area.
I think I read 42sq feet for the entire
car. I have not, and don't plan to
remove the carpet in the passenger
area. Just sliding it in where I can.

 

Does 42 include the doors?

 

Better check me on the doors. as I read,
most had custom door pieces.

 

Thanks for the information.

 

Interesting, I never applied it behind the seats. How hard was it to access and apply? Do you have a link to the posts that you're referencing?

FWIW, I was doing some big interior work the other week and I lined the whole center tunnel with it (mostly to help reduce the heat in the tunnel). Heat dropped a decent amount (though I'd still prefer less) but the car's noise dropped quite a bit, especially around the drivetrain (the low rpm 1st gear 'marbles' sound & injector tick).

The stuff really does work. I don't think I'd go crazy with it as I'd be concerned about the amount of weight I'd adding to the car but I do think it could go a long way in reducing noise if applied in moderation in select areas.

 

Sorry. Most of all I read was in this forum. A lot of stats are on Crutchfiled and the Dynamat sites. I searched Insulation, Dynamat
etc... I may be off on the total square footage, about 50
sq feet without the doors.

The bulkhead was only difficult because of the tight area to work in.
I sat on the door sill and cussed a lot. I just raised the carpet
up how it naturally drapes down. I slipped and crammed it
any where else to leave as much as close to factory build as
possible. Not difficult, just tight.

When I put in the M2W, I slipped Dynamat under, or stuck
it to each surface I could reach. Read the stats. You are
not adding enough weight to change your speed much
on the street. If you are a tracker or sprinter it might
change your dyno's.

 

Just following up. Took me four hours.
Put down the Dynamat first , Then
Reflectix on top of that. I looked
for Thermo-Tech locally, no luck.
So I used Reflectix I found at
Home Depot. Very inexpensive
by the way. I also put
Reflectix under the storage bins.

I put black rubber foam
behind the walls covering the
speakers. Just blank air under there
and prime for a rattle.

Results are, no cargo noise at all.
I can hear the exhaust actually
better. Tire noise is all outside the
car now. (GY's.) Couldn't be
happier.

Put the LED's in while I was there
too.
Sorry for the crappy iPhone pix.
My 300mm was all I had on the
35mm.

I will follow up on the heat
changes. Thx!

 

Good to see this cuts down on road noise. This might be my next mod

 

Is the Reflectix sold in the insulation area of Home Depot? Is that the actual name of it?

 

Thanks for the post! I'll look into it, too.

 

Your Welcome.

Yes, Reflectix. I went down to the far end of
the A/C filter isle. One isle over to my right , on the end , was Reflectix.
24ft for $11.00. There are threads containing Reflectix here.
I have not checked them out. But the stuff is easy to work with.

Get extra Reflectix Tape. This is not peel and stick. I ran out
quickly and used my left over Dynamat Tape.I almost
used one complete roll on the cargo area. I bought two. I plan
to do more in the passenger area.

 

Ok. Was able to get Reflectix over the Dynamat
I had slid in under the console storage area.

The thermometer was at 95 F after the car sat
for a couple hours, in the garage with windows
and console lid shut. Garage open, about 85 F
outside.

Went for a 30 min ride on the tollway. The
temp in the console went down 3 degrees
to 92 F after the ride. Much cooler In the
stock console. Except for the 1 inch closest
to the shifter. A quarter sitting there was still
very hot. I guess I missed the last inch or so.
The car is much tighter over all.

Bottom line is Reflectix works well and is
cheap. I say go for it!

 

I did my entire car with Dynomax and the Reflexic. Started with the cargo area, then the seat wall and passenger and drivers side, then the doors. Dynomat first, then a layer of the Reflexic.

Really cut own on the exterior sound. I drive about 90 miles each day, and like to listen to the iPod. I still have some rear tire noise (GY run flats) that I need to figure out, but a Bigg improvement. Worth the work.