Hello everybody , i have a problem on my 535i bmw , i bought the car with an Magnaflow exhaust and the sound is amazing but sometimes on the highway at 120km/h at 2000Rpm i have a drone in car and some vibrations. I have soundeadending the trunk but on the highway sometimes its still annoying.
I put some photos with the exhaust and if you can tell me what kind of exhaust system i have on ? Straight pipe with just the mufflers ? Thankk you !!
