The sound is one thing and the drone is another.
I am very disappointed in the mufflers from Hall as they are presented on their site as "The quiet European muffler" if I recall. The drone is different but still there, in a slightly lower RPM range. I guess at this point that it is my engine / headers. Their supplier then told me that only "performance mufflers" for the Pantera have been imported into the USA for years. I checked that with a tech in his company who has been there since 1980 and he said the same thing.
I spoke to a great engineer at VIBRANT, a company that sells different exhaust parts and he suggests resonators and a flex joint to eliminate vibration and stress in the system. I really do not have room for both on each header pipe.
There is also such a thing as an exhaust dampner, these are on a lot of cars but each is carefully configured by cam design, stroke, etc. Very scientific so that is out.
I would appreciate any ideas from anyone with experience in this field.
DICK RUZZIN
