Searched and read about 70 pages, but seems I'm the only one with this issue.
About 1,000 miles ago I installed the COBB CBE. I chose it based on exterior sound videos and the fact that everyone seems to agree it's drone free. When I'm cruising at 75-80 during my daily commute at light throttle, I'm getting an annoying drone that is borderline too much for me. It's enough resonance to spin inner ear fluid. I looked under the car today and everything is free of the chassis and all the flanges are aligned.
I did install the poly hangers as I read a lot of people were having movement issues with the stock ones.
Could the polyurethane be transmitting too much resonance into the chassis?
Do I just need to give it some time to break-in and quiet down?
It is more than likely because you are "cruising" at 75-80 mph. While this may be the norm for cruising where you live, that speed is actually higher than what the manufacturers consider cruising speed. Most, if not all, manufacturers do their cruising speed tests at 70 mph. So, given that you are traveling faster, and thus, at a higher rpm, this is most likely why you are experiencing drone on an otherwise quiet exhaust system.
À question for those of you that got à fswerks exhaust. Doe's it craqule and pop à bit on decel and does it drone ? Thanks. .
It drones, but it's a lot more audible throughout the entire rpm range. As I tell anyone who is interested in it, it is the loudest, most race-car-ish exhaust out there for the FiST.
For anyone out there looking to have a simple, bolt-on straight-pipe exhaust (I.e. No mufflers or catalytics) then FS Werks is the easiest way to go that route. You can easily unbolt the muffler section and bolt up a through-pipe in its place and BAM....race-car exhaust.
Hey Guys! i just want someones quick opinion. i am going to do a muffler delete on my MO fiST until i decide to actually get an aftermarket exhaust. Any issues with getting my muffler deleted.?
Save yourself the trouble and either buy a cat-back exhaust or don't do it at all. It isn't worth the trouble to bolt on a measly axle-back.