As far as the muffs, the quality is excellent and they are very light weight. I can't attest to sound level yet but I expect them to be similar to my SPF GT40 which is fine by me but I suspect might be a little objectionable for some. There is a dual pass version which fits the same space and is also repackable that would have lower sound levels. I have my tail pipe extensions turned down which also helps a bit. They fit my available space well but are pretty pricey as far as mufflers go but packed with scrubble instead of glass they'll be a life of vehicle muffler albeit slightly heavier than glass only packing.
Best,
Kelly
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.