Thread: Still making flutter sound on revs after GFB DV+ install.
View Single Post
      05-18-2019, 02:54 PM   #7
vespa
First Lieutenant
217
Rep
245
Posts

Drives: 2011 335i
Join Date: Dec 2014
Location: Thousand Oaks

iTrader: (0)
If it sounds like dolphins it might be your valve cover.
Appreciate 0
Quote