GS - 4th Gen (2013-2020) Discussion about the 2013 and up GS models

Changing the exhaust volume?

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Old 06-26-17, 07:32 AM
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jWilkinson
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Default Changing the exhaust volume?

I just had a JoeZ catback installed over the weekend on a 2016 GS350 F Sport. The notes sound good, the cold start is amazing, but damn if it doesn't get way too loud at low speeds. I could be driving uphill at 65 and from the driver's seat it sounds like I should be going twice that, or it sounds like my car is on the struggle bus.

I'm pretty ignorant to exhaust stuff but is there a way to tone down the volume or make the sound more proportional to the speed/ RPM?
Old 06-26-17, 09:43 AM
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Rudiculous
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Remove the mid pipe or axle back and put back to factory
Old 06-26-17, 10:12 AM
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jWilkinson
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Originally Posted by Rudiculous
Remove the mid pipe or axle back and put back to factory
Cool, will that neuter the exhaust notes or just decrease volume.
Old 06-26-17, 11:07 AM
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lysis250
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I have just the axle back and I think it's too quiet, you can take off your midpipe and leave just the axle back and sell the midpipe to me
Old 06-26-17, 11:09 AM
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jWilkinson
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Originally Posted by lysis250
I have just the axle back and I think it's too quiet, you can take off your midpipe and leave just the axle back and sell the midpipe to me
Ha you know, I just may do that. You any videos or dB data I can check for that?
Old 06-26-17, 11:14 AM
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This video shows the difference.
Old 06-26-17, 12:51 PM
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TrevorTran
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I've been hearing more and more about the Joe Z catback being TOO loud for everyday driving purposes. Is it overbearing that you can't drown it out with music? I've been tempted to purchase it for a long time, but am reconsidering due to how loud the drone is.
Old 06-26-17, 01:27 PM
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yardie876
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I've had the JoeZ catback for a little over 4 years now and I still love it. It does have drone at cruising speeds though. Long highway drives do get annoying if the audio volume isn't up past 30, but every time I mash the gas from a stop I forget about the drone. It sounds so good revving!

You'd be hard-pressed finding a catback exhaust that doesn't drone. I've heard swapping out the axleback to the stock ones while keeping the JoeZ midpipe give a nice tone so I may play around and try that out since I still have the stock exhaust.
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Old 06-26-17, 07:11 PM
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Boomin
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Dudes once you hit near 1000 miles it tones down big time . still noticing low amount of drone even after 5k miles but still better than stock....
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Old 06-27-17, 12:31 PM
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jWilkinson
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Originally Posted by TrevorTran
I've been hearing more and more about the Joe Z catback being TOO loud for everyday driving purposes. Is it overbearing that you can't drown it out with music? I've been tempted to purchase it for a long time, but am reconsidering due to how loud the drone is.
Man it sounds fantastic at cold start, and leaving stoplights. But I took some folks out to dinner this past weekend and at around 60mph on the highway they were all complaining about my exhaust. One guy was leaning in from the back to hear the two of us up front; I actually apologized! If you're seldom on the highway or spend a lot of time with stop lights, it sounds amazing. But currently the catback sounds disproportionately loud for the speed and I really feels like it takes away form the "luxury" part of luxury-sport GS models. Also, don't get me started on going up hills on the highway. It doesn't even need to be steep, but going 60 and giving it gas up a hill, the drone is real bad and makes my car sound like it's struggling.

Will be reinstalling some factory parts this weekend and turning this into an axle back kit. Most likely selling the JoeZ midpipes on here very soon. lysis250 if you're really interesting in buying the JoeZ midpipe, shoot me a PM.
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Old 06-27-17, 05:20 PM
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e60bmw
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This is why I will probably go with a meisterschaft GTC if I get a exhaust, it lets me close the valves if I want it more quiet. I can't stand drone. I had a M3 with a dinan exhaust that sounded like a animal when you got on it, but I had to put some resonators because it had so much drone when I was just driving normal.
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