Originally Posted by Turbodiesel
Yeah, they make them for the Military so you might need to talk to them about buying some!
I just emailed them and they basically said that their acoustic cover should decrease sound at low speed by about 18%, but not at all over 3000rpm. The price is double the standard cover and it must come off after every use at is not a breathable fabric. They seemed very honest and based on this email probably a company I would want to deal with.
Email attached below for reference.
"Yes we do a basic acoustic cover that has 2 layers of our fabric and
sandwiched between that is a acoustic foam.
Our product will help reduce the noise up to about 18% but once you boot the
motor up and it's revving over say 3,000 rpm nothing will keep it quieter
based on the tests we have done with a sound engineer and UK military.
You have to install the cover and take it off after every use as the foam is
not a breathable fabric and may over time if left on damage the decals
because the cover does not breath.
If this sounds ok to you, you can get a price from our site by going to
Tohatsu and then QUOTE, but you will need to double that price as we are
using 3 layers of fabrics. Is it worth it? We are not convinced based on the
price that it will do the job you want, but that is your call I guess???"