[64speed]

Originally Posted by grivera

Looks and sounds great. For sound deadener you don't have to break the bank with high-priced name brand. Two boxes of this - total of $130 -will do your floor and probably enough for your doors. Then you can move on with carpet install.

https://www.amazon.com/Siless-mil-sq...1407971&sr=8-9

Thanks, I was wondering if anyone had used it!

[ZeGermanHam]

Originally Posted by grivera

Looks and sounds great. For sound deadener you don't have to break the bank with high-priced name brand. Two boxes of this - total of $130 -will do your floor and probably enough for your doors. Then you can move on with carpet install.

https://www.amazon.com/Siless-mil-sq...1407971&sr=8-9

Originally Posted by 64speed

Thanks, I was wondering if anyone had used it!

Agree that there is zero need to buy Dynamat brand sound deadening. I used 80mil Noico brand sound deadening in my car (also purchased through Amazon), which looks to be very similar to the Siless brand linked to here. I actually liked the Noico better than Dynamat which I have used in the past. I can't speak for the Siless brand, but the Noico was easy to work with and has zero odor.

Whatever brand you go with, two boxes of 36 square feet is enough to do the entire floor pan, firewall, side kick panels, underside of dash, and the underside of the roof. I don't imagine you'll be doing under the dash now that you have stuff installed there, however. Once you get some sound deadening and carpet in there, it will be MUCH quieter.

[grivera]

Originally Posted by ZeGermanHam

Agree that there is zero need to buy Dynamat brand sound deadening. I used 80mil Noico brand sound deadening in my car (also purchased through Amazon), which looks to be very similar to the Siless brand linked to here. I actually liked the Noico better than Dynamat which I have used in the past. I can't speak for the Siless brand, but the Noico was easy to work with and has zero odor.

I used the Noico brand in mine, but black. I was gonna suggest that but didn't see the 36 sf box so posted the Siless brand instead. I haven't experienced any odor with the Noico either.
I used this kit of hand rollers for install: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[HWYSTR455]

I usually run dynomax super turbos, they are quiet. Most say they are too quiet, but don't think that's possible IMO. In the 442, 495ci, hooker super comps, 2.5 exhaust, pypes w X pipe, over the rear and out the back, no drone at any RPM, and no power reduction. You can ride with the windows down and talk to people in the back seat even.

In the GTO, same system with Goerlich Xelerators, there's a slight drone around 2000 RPM, but tolerable. Louder than the Dynomax, especially at WOT, but tolerable. I will probably swap them out for the Dynomax'. Oddly, same car, same exhaust, they were quieter with the 461ci, and no drone whatsoever at any RPM.

I think cam profile does in fact have an impact on sound and drone, especially as you go to larger displacements.


.