Originally Posted by ///Metak
This is why Eisenmann spends months on RD to get the right sound without the dreaded drone before they release it to the public for sale, while other companies just spit something out in order to sell it first.
My E46 has a terrible Drone FROM an EISENMANN exhaust!!
The metallic reverberation in the cabin is horrible.. Three layers of Dynamat extreme in the trunk and still no relief..
I am finaly switching to the OEM performance muffler as the drone is causing me headaches (I already have some hearing loss from Iraq/Afghan/Panama...) So I think it just has to do with individual CAR harmonics.. Not every Eisenmann exhaust causes Drone, so not every 1M will have it either..