I've always loved the sound of my exhaust, a twin into single 3" with one large high flow muffler and a smaller muffler near the back.
It's loud, but very crisp. Has a very clean note with no harshness or crackly overrun etc.
The only problem is around 1800-2200 rpm it goes into drone mode. The crispness gets lost from the note and the sound goes all blurry, intruding into the cabin a lot more. This is a common cruising rev when towing our caravan too.
What i'm wondering is whether the exhaust experts here may know, is there a general cause for drone (certain bends at certain distances perhaps?) ? And can it be tracked and eliminated without altering the rest of the rev's note?
It's loud, but very crisp. Has a very clean note with no harshness or crackly overrun etc.
The only problem is around 1800-2200 rpm it goes into drone mode. The crispness gets lost from the note and the sound goes all blurry, intruding into the cabin a lot more. This is a common cruising rev when towing our caravan too.
What i'm wondering is whether the exhaust experts here may know, is there a general cause for drone (certain bends at certain distances perhaps?) ? And can it be tracked and eliminated without altering the rest of the rev's note?
