aftermarket exhaust and driving mode
04-25-2019, 07:02 PM
#1
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Thread Starter
aftermarket exhaust and driving mode
those of you with aftermarket exhausts... if you want to lay low and be quiet..... does going into eco mode help to cancel out sound?
or is getting an aftermarket exhaust (catback or muffler) a one way ticket to noise regardless of driving mode you set to.
assuming sport+ really opens up the noise, which is expected (hell we get that with stock exhaust)
or is getting an aftermarket exhaust (catback or muffler) a one way ticket to noise regardless of driving mode you set to.
assuming sport+ really opens up the noise, which is expected (hell we get that with stock exhaust)
04-25-2019, 09:13 PM
#2
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GLC43, X P100D, S P100D, CT200H
those of you with aftermarket exhausts... if you want to lay low and be quiet..... does going into eco mode help to cancel out sound?
or is getting an aftermarket exhaust (catback or muffler) a one way ticket to noise regardless of driving mode you set to.
assuming sport+ really opens up the noise, which is expected (hell we get that with stock exhaust)
or is getting an aftermarket exhaust (catback or muffler) a one way ticket to noise regardless of driving mode you set to.
assuming sport+ really opens up the noise, which is expected (hell we get that with stock exhaust)
If you did a muffler delete, then there is no way for you to reduce the drone. Driving in eco will still give you drone.
04-26-2019, 04:42 PM
#3
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Thread Starter
Your exhaust should have a way to close the muffler valve manually. Most exhausts also offer a way to automatically open the muffler valve by setting what rpm to automatically open the valves.
If you did a muffler delete, then there is no way for you to reduce the drone. Driving in eco will still give you drone.
If you did a muffler delete, then there is no way for you to reduce the drone. Driving in eco will still give you drone.
but that still leaves the question, those of you with aftermarket exhausts, while yes, it is still generally a little louder, is there an audible difference say putting the car in eco mode to putt through the neighborhood???
04-26-2019, 08:25 PM
#4
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GLC43, X P100D, S P100D, CT200H
the c43's have the button to toggle the valves. however, on the C450, we did not get this feature. and from my research, i believe the values move (at least in sport+ mode) variably with the RPMs. higher the more open it is... please correct me if i am wrong.
but that still leaves the question, those of you with aftermarket exhausts, while yes, it is still generally a little louder, is there an audible difference say putting the car in eco mode to putt through the neighborhood???
but that still leaves the question, those of you with aftermarket exhausts, while yes, it is still generally a little louder, is there an audible difference say putting the car in eco mode to putt through the neighborhood???
Its quiet when you want it to be, and in auto mode its loud when you tell it to be. I dont even need to manually turn it always on or always off, but I could if I wanted.
04-28-2019, 04:47 AM
#5
Member
For an aftermarket exhaust, get one that is true dual pipes with valve controlled mufflers. That will be as close you can get to the factory PE. The valves will be controlled by either a remote control or by RPM thru an OBD2 unit, or both. Highly recommend one with OBD2 RPM control. When the valves are closed, it will be quieter than stock and no drone. When the valves opens, it will be loud and drone like a MF. Basically on straight pipes. 
04-29-2019, 11:00 AM
#6
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Thread Starter
My car is actually MORE quiet with the valves closed than stock, cause the after market muffler is smaller than stock (FI Exhaust).
Its quiet when you want it to be, and in auto mode its loud when you tell it to be. I dont even need to manually turn it always on or always off, but I could if I wanted.
Its quiet when you want it to be, and in auto mode its loud when you tell it to be. I dont even need to manually turn it always on or always off, but I could if I wanted.
For an aftermarket exhaust, get one that is true dual pipes with valve controlled mufflers. That will be as close you can get to the factory PE. The valves will be controlled by either a remote control or by RPM thru an OBD2 unit, or both. Highly recommend one with OBD2 RPM control. When the valves are closed, it will be quieter than stock and no drone. When the valves opens, it will be loud and drone like a MF. Basically on straight pipes.
