View Single Post
      09-10-2012, 04:07 AM   #1
Enlisted Member

Drives: 335i Coupe
Join Date: Dec 2006
Location: Where BMW's can be driven

iTrader: (0)

CORSA Drone / Vibration question

I just bought a used CORSA exhaust for my 335 MT from one of the friendly forum members. I purchased CORSA since I heard it's drone free ( at least their website says so). Anyway since there were no clamping parts, I got my stock muffler cut and the CORSA welded at a local muffler shop. After the installation I saw that the mufflers were not installed correctly, I mean the right muffler was sticking about 1/2 - 1 inch out compared to the left. Not really noticeable so I left it at there.

Now what I observed was around when driving 1700 & about 2200 rpm I hear this irritating drone apart from a vibration in the cabin. Can this be because of the difference in lengths of the mufflers. This is the first time I got an after market exhaust so I do not have much experience here.

335i Coupe, Space Gray, Cream Beige, 6MT, ZSP, ZPP