BMW R1200R R1150R/T F800 K1200R R1100R/T R1250R RnineT Message Board

sunny72 wrote:

Kieran R1200R wrote:

MrPMS wrote:I've got a barely used Remus for sale that sounds very good. Can provide pics and details if you email me at [email protected].

Buy this one!

Done. Happily awaiting delivery.

I've got a carbon Remus.
Had it on the bike from new.
It's not overly loud, but not bad.
I bought it for the looks realy.
The best I have heard to date is the Akapovic duel outlet exhuast.
Very deep and throaty.
Good luck with your purchase, some pic's would be good when you have it on.

ContraMoto wrote:Got my Ztechnik exhaust today. Fitting was a little tricky since the OD of the exhaust connector is the same as the OD of the header. The little slots are too short to expand the exhaust connector enough. I had to saw longer slots and pry the thing open. Some slippery anti-seize helped wrestle it on. Clamped up everything and started the bike. Leakage was still too much for my taste at the junction. I took it apart, added one layer of header wrap and re-tightened. It's snug and sealed, but I don't like having that fiberglass wrap on there. Will fix that up later...

Sound is rather near to stock, so I pulled the dB killer. Very nice! A rumble without that harsh and nasty straight-pipe sound. Smooths out at driving speeds.

Off for a longer trip tomorrow.

Shoot, I goofed up when I posted the link. The slip on is not meant to fit the R1200R, just the ST and RT. It is the full system that fits the R1200R and those we are sold out of now. I emailed you ContraMoto regarding this - I'll make it right.
Mike

MJB check your PM

Mike Figielski wrote: Shoot, I goofed up when I posted the link. The slip on is not meant to fit the R1200R, just the ST and RT. It is the full system that fits the R1200R and those we are sold out of now. I emailed you ContraMoto regarding this - I'll make it right.
Mike

ooh ooh I bought the Ztech 4002 that said it was for the R1200ST and R1200RT, it bolted right on to my R1200R with only a slight problem with the center stand bumper. That was a year and 10K miles ago and I'm very satisfied with the looks, quality and sound.
BUT -now I find out it's the wrong muffler, I wonder if I'm doing harm to my engine maybe I should take it off and sell it for $50 (only kidding )

I wanted to let you guys know that I am selling a Remus Header for the R12R over in the Buy/Sell area on the forum. Drop more weight by getting rid of the Cat. The header and an after market exhaust together makes a nice "note" on acceleration.

Thanks

So is there an aftermarket exhaust that improves performance? I wouldn't mind something with a throatier sound, but it is performance that would make the investment worth it for me. A decrease in weight would be a nice benefit too.

jkhomes wrote:So is there an aftermarket exhaust that improves performance? I wouldn't mind something with a throatier sound, but it is performance that would make the investment worth it for me. A decrease in weight would be a nice benefit too.

Hmmm... 1st post?

What's your name? We're pretty friendly here..

And - mebbe is the answer. There are claims of improved performance, but no proof that I've seen (back to back dyno runs are what I'm looking for - not done by the manufacturer of the exhaust..) There are louder ones, and lighter ones - but without remapping of the FI system, and probably some intake work, it's questionable if BMW left much power laying on the table for some dude in their garage to come along and pick it up by welding some pipe together. BMW is pretty good at this stuff.. and 110HP from less then 1200cc's isn't to be sniffed at. My experience with most performance exhaust on BMW bikes has been - you may see a few HP on the very top end, at the expense of HP/torque where you actually ride. Overall the total space (aka power) under the plot doesn't change a bunch.

deilenberger wrote:
And - mebbe is the answer. There are claims of improved performance, but no proof that I've seen (back to back dyno runs are what I'm looking for - not done by the manufacturer of the exhaust..) There are louder ones, and lighter ones - but without remapping of the FI system, and probably some intake work, it's questionable if BMW left much power laying on the table for some dude in their garage to come along and pick it up by welding some pipe together. BMW is pretty good at this stuff.. and 110HP from less then 1200cc's isn't to be sniffed at. My experience with most performance exhaust on BMW bikes has been - you may see a few HP on the very top end, at the expense of HP/torque where you actually ride. Overall the total space (aka power) under the plot doesn't change a bunch.

Howdy,
Base map on my stock '08 RR was 98.66 hp and 74.94ft-lbs, to the rear wheel.
With a Staintune full system (w/o the db-killer), PCIII (w/ re-map) and using the stock filter, we now have 106.81hp and 81.71ft-lbs to the rear wheel.
Brad (TT RDHS)

Okay, I installed the Z-technic slip-on that apparently is not made for the R1200R which I purchased from Beemerboneyard.com for about $250. Its actually made for the R1200RT or R1200RS. I had to do a little bit of modification to make it work. First, since the cat is almost the same size as the new exhaust, I filed the cat end piece down a little to give it a smoother edge on the outside and on the inside of the slip-on. The guys on the post here are right, it does not slip on all the way to cover the holes completely on the slip-on. So I used high temperature copper sealant to neatly fill in the holes and the edge of the slip-on. The results are perfect and you don’t even notice the copper silicone material if it is done neatly. The OEM clamp is still used with this, but the spacer is taken out. It lines up perfectly with the mount on the passenger foot peg bracket. I mounted my behind the bracket, just like the OEM. The center stand catch had to be modified a bit, I drilled two holes which was a major feat and pop-riveted a small piece of aluminum to catch the center stand rubber bumper. This is a whole lot easier if you drill it out when its off the bike instead of upside down like I did. This modification was not my idea, but another R1200R owner and it worked perfect.
The end result, I did a 250 mile ride and there are no problems at all. It might be my imagination, but it seams like there is slightly more power from 2k thru 3k rpm. The sound is perfect with the silencer out. There are no problems what so ever with the connection and there are no leaks

Brent

TT RDHS wrote:Howdy,
Base map on my stock '08 RR was 98.66 hp and 74.94ft-lbs, to the rear wheel.
With a Staintune full system (w/o the db-killer), PCIII (w/ re-map) and using the stock filter, we now have 106.81hp and 81.71ft-lbs to the rear wheel.
Brad (TT RDHS)

Brad,

Sounds like an actual improvement. Do you have the dyno plots? I'd be curious to see where the power is added...

And as you noted - it wasn't JUST the exhaust (I assume the Staintune does away with the cat-converter? Some people may not want, or may not be able to do that..), it was the exhaust AND retuning the mixture with the PCIII.

Thanks guys. I am going to continue to monitor this thread to see if I can get any performance boost to rationalize a different exhaust system. Yep, Don, my first post. Sold my 97 RT and bought an 08R. Big difference. Getting a new windscreen and doing the Don C spacer mod. This is a great board.

deilenberger wrote: Sounds like an actual improvement. Do you have the dyno plots? I'd be curious to see where the power is added...

And as you noted - it wasn't JUST the exhaust (I assume the Staintune does away with the cat-converter? Some people may not want, or may not be able to do that..), it was the exhaust AND retuning the mixture with the PCIII.

Yes, I do have the graphs, but I do not have a scanner to be able to post them. (I'll try to find a way...)
And yes, the full system does do away with the cat.
And yes again, custom mapping was done with the PCIII, by a very talented tuner. Mark Ladesma at GO AZ BMW in North Scottsdale Arizona.

Also the air filter for the newer RRs are less restrictive (evidently), so although I'm using a stock BMW RR filter, it's from the newer model.

No changes have been made to the snorkel or the box.

I just want to know where to get the Akrapovic slip on. I've contacted the 2 retailers that Akrapovic listed on the "where to buy" section of the website and neither one of them say they carry the R1200R slip on. It's funny, but Cycle Gear say they do have it, but they want $880 for it. Yikes!

Anyone have any other resources?

ContraMoto wrote:One -- no adjustment needed. The computer uses O2 and other sensors to adapt in real time.

Two -- there's nothing to adjust anyway. Nobody has really hacked these chips; at most, there are devices to trick the computer by altering sensor input.

One thing that I highly recommend is a Boosterplug. It slightly enriches the mixture by telling the computer that the air temp is colder than it really is. Makes the motor run much smoother and softer, particularly at low throttle and on deceleration. It installs in about 15 minutes and is idiot-proof.

I've been told that a reset of the computer is good to do when installing a new muffler. unhook power. re-hook power. turn bike on, but don't start. roll throttle all the way on and off two times, not too fast. start up and go.

Old thread but I agree.

I installed a Akrapovic slip on last year. I had a slight lean backfiring on deceleration.

I installed a boosterplug this weekend and took a short ride. The boosterplug is great. Smooth idle, smooth acceleration, and smooth deceleration. Well worth the money and this thing really works!!! http://www.boosterplug.com/shop/frontpage.html

More reviews http://www.advrider.com/forums/showthre ... 031&page=5

Ordering an akrapovic soon! I already have a booster plug and I would do it again. Is it spring yet???)

rokinrider wrote:Ordering an akrapovic soon! I already have a booster plug and I would do it again. Is it spring yet???)

Akrapovic has a nice deep low sound. I removed the baffles and cut the end plates off them and re installed. Very happy with it.

rokinrider wrote:Ordering an akrapovic soon! I already have a booster plug and I would do it again. Is it spring yet???)

Good choice. I fitted the Akra slip on last year and although not any great improvement perfromance wise, it did seem to make the low speed throttle response less jerky. I've now fitted a Boosterplug and the bike rides pretty near perfect. I found the best baffle config for me is the top one in, bottom out. Gives a nice sound without it being too obnoxious for the neighbopurs. Mind you it's not that loud with both baffles out, just a bit boomy which gets on my nerves on long rides. Best of all - the Akrapovic looks great :mrgreen

Pics near bottom of this page, just to keep you going 'til yours arrives:
http://www.oldgitbiker.pwp.blueyonder.c ... Page_1.htm

Dewi

Bike sitting in garage heated at 64 degrees.

GS911 readings on my cell phone... LOL