Hey all i had the whole exhuast system replaced on my EL I6 but there seems to be a farting/buzzing noise coming from the manifold/cat area??
Its not loud, but noticable enough to figure out what it is. I went to the exhaust place to get it checked out, i thought it was a leak, but they couldnt find anything!
Its not normal, as my old exhuast system was quiet. Its not noticable when idling but when accelerating next to buildings, ou can hear the buzz/fart noise reflecting off the buildings.
Could it be something leaking at the manifold, maybe the CAT is blocked again?
i have no idea, just trying to see if theres a common fault in the EL I6.