slip on for more noise

[billbeemer]

not wanting to spend two bros or staintune money for slip on. am thinking of aftermarket slip-on like rocket bikes for some more noise. will back pressure be affected with a slip-on? i will leave the rest of the exhaust system alone for simplicity. btw, my bike is a stock 2003 r1150r with factory muffler.

[riceburner]

Any back pressure issues you may have will be nullified if you have the standard catalyser fitter (the big box under the gearbox). That'll provide all the back pressure the bike could ever want.

just stick on any muffler that fits.

Or ride without!

[wncbmw]

Just take off the muffler! I did it for a full size bag on that side but it does give the bike a deeper, richer and yes, louder sound. Not anything annoying, like a HD with straight pipes though!

[riceburner]

Just take off the muffler! I did it for a full size bag on that side but it does give the bike a deeper, richer and yes, louder sound. Not anything annoying, like a HD with straight pipes though!

Mine's nowhere near that loud!

I just have the catalyser box and a small tip - it's a little louder than stock, but MUCH quieter than it was with a Remus y-piece and Remus 'muffler' can.

[wncbmw]

I did not intend to imply it was loud! Most folks don't even notice I don't have a muffler!

[timl]

I just removed the Two Brothers y-pipe and muffler from my Rockster, and installed the cat without the muffler. Very nice sound. I just need to find an exhaust tip to direct the exhaust away from the passenger's foot peg.

[billbeemer]

thanks for the help. i removed my exhaust pipe today and it doesn't sound bad. i'm still considering a remus slip-on. i just hate to spend $500. we'll see.

[monstrous]

Having fiddled extensively with many possible options, the best inexpensive set up is to replace the cat with a y pipe and run the stock muffler, great sound, no tuning needed. I am currently running y pipe, LeoVince can, Dobeck Performance fuel programmer and like that very well.

[Dr. Strangelove]

take the OEM muffler off and go to Midas et al and get them to cut you a 4-6" length of their regular tubing and bevel the distal end to point away from the bike. Ten bucks? They even have stainless but that is more expensive. I used their standard aluminum/steel alloy and "polished it" with some fine steel wool. Looked fine and sounded great. In fact, on my r12r now I have a remus. I think the remus may be a wee bit louder? but it's very close. They sound is VERY similar. The color of their tubing was the same color as the wheels so it did not stick out at all. I think it looked far better than a pep boys chrome extension because it sort of "disappeared."
No performance issues, in fact I thought my mileage went up a bit, but I couldn't see why it would except for the weight loss. It went up to low 40s to 43-44.
The tone can be changed by the length of the pipe, but descriptives are deep throaty non sewing machine. Not Harley at all. At all. There were no issues whatsoever regarding hot gases and the side case. Now I could add an Agri Supply tube onto the side case in the muffler cutout and store tools.

Hope this helps

You can see it here

[captaincable]

do you have audio of that "Dr."

[Dr. Strangelove]

unfortunately no, bike is now in Texas (and I'm not). Easy enough to hear though, remove the muffler. Adding the extension changes the characteristic of the sound, at once muffling slightly and changing the throatiness of it.

John

[captaincable]

Thanks

[peels]

I like the boxer motor because its so quiet. I actually wish I could quiet the intake a little, even....

In fact I tease my harley riding buddies...because the first thing they all do is tear off their exhaust and put on a pipe(expensive) that dont even add power, just noise.
I always say, "why do you want to advertise the poor decision you have made?"

[Dr. Strangelove]

That's funny
It's not that it's louder so much as it's a different sound, a little more bad a$$, but just a little. More of a classic motorcycle sound(whatever that means)
And you remove sig weight 13 kg I think
And it looks better IMO seeing the whole rear wheel.
Obviously others' mileages may vary. Beauty is in the eye and ear of the beholder.

[Soliton]

For the lowest cost, yanking off the muffler and putting on an outwards facing tip can't be beaten.

That said, I went with a Y pipe and a 40cm shorty muffler from Neptune with an outwards facing tip. The whole setup ends just near the centreline of the rear wheel. It sounds awesome. Like a choir of archangels that smoke 60 a day. Change down hard and the over run growls and burbles and every now and then I get a little pop. I pulled up at a group of other riders a while ago and they had no idea what kind of bike I was riding, the consensus was that it sounded like half and half Ducati and Moto Guzzi. No one believed that a BMW could sound like that, but then they all agreed they had never really heard one before. I have only ever ridden R series bikes and until this one I was sure that they would always sound like a sewing machine having un-natural congress with a vacuum cleaner, but with the right set up they sound great. It's a shame our kraut mates feel the need to gag them so hard. But different strokes for different folks.

[hagri]

Do you have picture of your setup with Neptune pipe? Were you able to keep the center stand?
And any chance you have a video with the sound?

Thank you in advance

[Soliton]

Yes, you can keep the centre stand, and here is a picture. I'm not much of a photographer and herself is a bit grubby. ( I ride to work every day and it has been raining.)

Sorry I can't help with a sound file. I might have a crack at it.

[hagri]

Thank you! I emailed Neptune for a quote yesterday - they no longer supply the Y-pipe but still make the exhaust.
I may go for it for next season - just got the bike, still need to sell my old one.

[Soliton]

I just did a quick ebay search using "R1150r exhaust Y" as the search criteria and found 4 entries on the UK site. This is probably mirrored on other sites so they are still available as second hand items. The cheapest currently had a price of 25 pounds. I bought a no name version from Motoworks UK about 4 years ago. It was MUCH cheaper than a Remus. I don't know if they still sell them

[hagri]

Thank you, I probably should just get y-pipe right now and keep it till I decide on exhaust.
It is my first BMW and I kind of enjoy the vast difference in sound compared to my previous ride - inline 4 Yamaha FZ6 with engine based on R6 supersport and Leo Vince pipes. To say it was loud would be understatement and would not do justice to the perfect growl this combo was putting out. I am in no way will try to replicate it as it is simply not possible and R1150R is completely different animal.
And I kind of like the stealthy sewing machine sound for now :-) But deep inside I know I would like to add some additional pipe music at the end of this season or next year.

Which bring me to my next question - my Yamaha had smart fuel mapping system. Once you put aftermarket pipes all you need to do is disconnect the battery and after several rides engine would adjust to the new pipes. Alternatively you can use device like Power Commander to load custom maps.

If I go y-pipe and aftermarket exhaust route - do I need to perform any additional steps? Again - my goal is not more power or torque but simply richer sound. So naturally would like to avoid unnecessary add-ons like performance chips, etc unless I absolutely have to.