Exhaust Systems

My R18 is around 400 milles now and the engine is still under break-in.
I noticed today during a ride, that the sound of the stock exhaust was getting louder, specially on Roll and Rock modes.
Does anyone have the same feeling with those exhausts after engine break-in ?
Just thinking the same and around same miles
 
Just thinking the same and around same miles
I have over 11,000 miles on my R18C and the mufflers did do some break-in.The addition of BT Tuner really gave the stock exhaust a deeper and a little more throaty sound.I also have a K&N air filter and left off the 2 plastic tubes that run to the airbox.
I am suprised nobody has drilled out the baffles.I am not willing to experiment with the $2600 price for a pair of stock mufflers.
 
My R18 is around 400 milles now and the engine is still under break-in.
I noticed today during a ride, that the sound of the stock exhaust was getting louder, specially on Roll and Rock modes.
Does anyone have the same feeling with those exhausts after engine break-in ?
Yes, the exhaust and the bike will improve with miles.
 
Hey Gr8,
Got couple questions, if you dont mind
How did you eliminate the Cat? Replace it with a straight pipe?
How did you bypass the CO sensors? Needs anu ECU flush?
Thanks
go here for an easy generic video.

keep the sensors. the bmw broad band loop does an excellent job. i did not test the air/fuel ratio but it seemed to run excellent with no tune, as the broad band adjusted as it was designed to do.

gl
 
My R18 is around 400 milles now and the engine is still under break-in.
I noticed today during a ride, that the sound of the stock exhaust was getting louder, specially on Roll and Rock modes.
Does anyone have the same feeling with those exhausts after engine break-in ?

I have less miles on my 18 Classic due to the lingering cold weather and salt filled roads...but you are not mistaken, mufflers do break in as well affecting their respective exhaust note. I think the bike's stock exhaust system is not only of high quality, and looks awesome, it also sounds great. I have zero plans to replace it. I also heard that the bike sounds even better after Bren tuning in which I plan to do.
 
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