1. They are almost totally silent at cruising
2. They do not drone at any rpm
3. They scream like a cat when you rev up
I think Dynomax haave done some reseach on noise cancelling (especially bass cancelling). The sound has a significant bass cut on idle compared to Super Turbos.
Possible drawbacks:
1. You will start hearing all sorts of sounds from the mechanical devices in your car
2. You might fall asleep while driving
Note: They are more silent than the Super-Turbos I had previously, both in 2 and 2+1 (transverse) muffler setups.
Note 2: I still have the rear resonators on tailpipes
2. They do not drone at any rpm
3. They scream like a cat when you rev up
I think Dynomax haave done some reseach on noise cancelling (especially bass cancelling). The sound has a significant bass cut on idle compared to Super Turbos.
Possible drawbacks:
1. You will start hearing all sorts of sounds from the mechanical devices in your car
2. You might fall asleep while driving
Note: They are more silent than the Super-Turbos I had previously, both in 2 and 2+1 (transverse) muffler setups.
Note 2: I still have the rear resonators on tailpipes