I have roll of Dynomat Extreme and..
I like to minimized the exhaust resonance in cabin caused by aftermarket exhaust system.
Can anyone recommand me how can I minimize cabin resonance with dynomat? Where should I put them?
I was thinking about trunk floor.
Thank you!

 

I agree

 

How big is the roll?

I little bit of dynamat *might* help a little, but I wouldn't bet on it.

 

You might want to take a look at these two threads. These members have done quite a bit of novel and cutting-edge research on the subject:

http://forums.s2ki.com/forums/showthread.p...light=trunk+lid


http://forums.s2ki.com/forums/showthread.p...ght=trunk+noise

 

Ok this is what I did.
I had four rolls of dynamat extreme(got them for $30) and I put them on tool walls and pretty much every trunk floor.
Also I put two layers on spear tire floor.(from searching thru forum, this area caused most resonance and noise)

After installing them. I went out for test drive..

Resonance and noise from the rear of the car was reduced very much. I would recommand anyone who is annoyed with aftermarket ehaxust resosnance.

 

[QUOTE]Originally posted by jwkim
Ok this is what I did.
I had four rolls of dynamat extreme(got them for $30) and I put them on tool walls and pretty much every trunk floor.
Also I put two layers on spear tire floor.(from searching thru forum, this area caused most resonance and noise)

After installing them. I went out for test drive..

Resonance and noise from the rear of the car was reduced very much.

 

Where can you get dynamat?? If possible, please post some pictures, I'm interested too......... thanks.

 

I used DYNAMAT XTREME DOOR KIT(comes with 4 rolls of 3 square feet sheets) and it was more than enough to cover trunk and spare tire floor.
I got them from ebay for $30+
(retail price is $90!!! what a steal!!)

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...&category=14932

I felt big difference. Resonance with RM exhaust was REAL bad but now it is no longer painful crusing at 3-4000rpm.

 

jwkim: i saw you from seoul, korea. I wonder how can your S2k's soft top survive korea's harsh winter? I just came back from korea last month. it was freezing......

 

[QUOTE]Originally posted by jwkim
I used DYNAMAT XTREME DOOR KIT(comes with 4 rolls of 3