M mel4fun Active Member Mar 15, 2016 #1 Looking for some feedback form owners who have upgraded to Remus or M Performance exhaust on their 3 / 4 series. Do you have droning in the cabin and what's your feedback. I am looking for those with the N20 block ... Thanks
Looking for some feedback form owners who have upgraded to Remus or M Performance exhaust on their 3 / 4 series. Do you have droning in the cabin and what's your feedback. I am looking for those with the N20 block ... Thanks
