Dennis Quella at Pantera performance center in Colorado has his own stainless steel mufflers. They are priced as if they are made out of gold but they appear to be a better option than the restrictive GTS mufflers I currently am using.
I am looking for owners that may have already installed these mufflers on their car and seeking their feedback on noise levels, especially at highway cruising speeds.
I am also considering modifying the current GTS mufflers but I understand that approach creates a pretty loud final product.
Would be wonderful if someone with Dennis' mufflers will be attending the fun rally later this month, as I could hear them in person.