Hey all,
My 2013 Focus ST is running with Cobb Stage 3 gear at this point. I have the Cobb Turbo-back Exhaust (downpipe with catted exhaust). I initially thought that the Cobb exhaust was way too loud shortly after first driving my car after the installation. I then realized, it isn't so much the loudness, but rather the frequency of the exhaust that's my issue. I have a phone app that measures the decibel levels in the car, and the exhaust isn't any louder than like 75 db.
There is a noticeable drone cruising at 60-80 mph on the highway. If I give it some gas in 5th or 6th, not even wide open throttle, there is almost a sound boom reverberating through the cabin. It's very unpleasant to the ear. My wife, who is a musician (I am tone def), said that it sounds like there is something in the mid-low frequency of the sound that makes it uncomfortable to the ear.
Has anyone ever experienced this? Could it be vibrations? I believe that shop that installed the exhaust re-used the OEM exhaust mounts. I am not sure if upgrading to the Cobb mounts would do anything for the sound. Should I consider adding a resonator? Any recommendations?
My 2013 Focus ST is running with Cobb Stage 3 gear at this point. I have the Cobb Turbo-back Exhaust (downpipe with catted exhaust). I initially thought that the Cobb exhaust was way too loud shortly after first driving my car after the installation. I then realized, it isn't so much the loudness, but rather the frequency of the exhaust that's my issue. I have a phone app that measures the decibel levels in the car, and the exhaust isn't any louder than like 75 db.
There is a noticeable drone cruising at 60-80 mph on the highway. If I give it some gas in 5th or 6th, not even wide open throttle, there is almost a sound boom reverberating through the cabin. It's very unpleasant to the ear. My wife, who is a musician (I am tone def), said that it sounds like there is something in the mid-low frequency of the sound that makes it uncomfortable to the ear.
Has anyone ever experienced this? Could it be vibrations? I believe that shop that installed the exhaust re-used the OEM exhaust mounts. I am not sure if upgrading to the Cobb mounts would do anything for the sound. Should I consider adding a resonator? Any recommendations?