900rr exhaust - Wrist Twisters
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post #1 of 43 Old 02-10-2014, 12:27 PM Thread Starter
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900rr exhaust

Any idea if this will fit a 900rr header/midpipe?
I'm more curious if anyone knows the measurements of a 2011 bmw s1000rr factory midpipe... I've contacted the seller and agreed on a price but they have not answered with the measurements I asked for.

Fmf apex slip on exhaust for 2011 BMW s1000rr. | motorcycle parts, accessories | Edmonton | Kijiji

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post #2 of 43 Old 02-10-2014, 07:52 PM Thread Starter
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Will ID of 60mm and OD of 62mm work withe the 900rr?

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post #3 of 43 Old 02-10-2014, 07:57 PM
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Quote:
Originally Posted by ariannasdaddy View Post
Will ID of 60mm and OD of 62mm work withe the 900rr?
The 900rr header has a 58mm ID and a 60.50mm OD.

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post #4 of 43 Old 02-10-2014, 08:35 PM
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Thats close enough to work. You still might need to cut/weld and trim to get the fitment u want.

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post #5 of 43 Old 02-10-2014, 08:39 PM Thread Starter
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Quote:
Originally Posted by HeliMech View Post
Thats close enough to work. You still might need to cut/weld and trim to get the fitment u want.
Thanks for the response Ian. I'm gonna grab that can for my 900rr mod. Now I've got a project!!

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post #6 of 43 Old 02-10-2014, 08:52 PM
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Do u have a header yet?

I have a 2bros one here and a good source to maybe score another OEM one down the passage for cheap. You can have the 2bros if u cover shipping, its got a dent and needs to be blasted and coated since its mild steel. If u want me to hunt down the OEM one let me know, my cost plus shipping on that one.
'

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post #7 of 43 Old 02-10-2014, 09:05 PM
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I think he's getting a 900RR one from mr.t. He's got one sitting in his garage.

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post #8 of 43 Old 02-10-2014, 09:11 PM
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Sounds good man!

I have been contemplating cutting up the 2bros header to make a exhaust for the big wheel ..... figured I would offer it up before I chop it up. =)

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post #9 of 43 Old 02-10-2014, 09:22 PM Thread Starter
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Yeah, I got the header from MRT81. The deal was that he give it to me with the promise that I offer the yoshi cans to Rickard919 for the same price. Turns out that ricard doesn't want the yoshis...
Perhaps I will sell them to cover the cost of the can and fabrication that's needed for the 900rr mod.

They are pretty good shape but need some major tlc. Rust and corrosion is pretty thick.

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post #10 of 43 Old 02-10-2014, 09:52 PM
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That header sat in my garage for a few years. I was gonna do the low mount conversion but then decided to get a set of high mounts.

Someone might as well use it, at one point I was gonna throw it in the scrap bin at work, glad I didn't

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post #11 of 43 Old 02-10-2014, 10:00 PM Thread Starter
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Quote:
Originally Posted by Mr T81 View Post
That header sat in my garage for a few years. I was gonna do the low mount conversion but then decided to get a set of high mounts.

Someone might as well use it, at one point I was gonna throw it in the scrap bin at work, glad I didn't
I'm glad you didn't too.
Thanks again

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post #12 of 43 Old 02-11-2014, 06:42 AM
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Curious to see how this turns out.

My single sided exhaust had a ID larger than the 2BR mid pipe's OD. I just used a shim to fill the gap and it worked just fine... Wish I could take credit for the fabrication, but I was sold the pipe with the shim.



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post #13 of 43 Old 02-15-2014, 04:05 PM Thread Starter
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Gonna take some tweaking but I think it will work. Time to rough fit the header just to get it lined up. Anyone know a welder that can help me? On the back side of the slip on there is a hole that needs covering and a new mid pipe mount will be needed too.

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post #14 of 43 Old 02-15-2014, 06:48 PM
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I really like the shape and length of that can. Even has some red lettering on it to match the bike.

My good buddy Jason should be able to help with welding requirements...

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post #15 of 43 Old 02-15-2014, 06:59 PM Thread Starter
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The hole as described. I'm hoping a stainless patch will do the trick.



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post #16 of 43 Old 02-15-2014, 09:32 PM Thread Starter
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post #17 of 43 Old 02-15-2014, 09:37 PM Thread Starter
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With the belly pan too!



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post #18 of 43 Old 02-15-2014, 09:51 PM
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Looks sweet! The lines fit the bike very well.

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post #19 of 43 Old 02-15-2014, 09:55 PM
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Quote:
Originally Posted by g00gl3it View Post
Looks sweet! The lines fit the bike very well.
+1. The hardest part of this project is to remove the old mid-pipe/y-pipe...

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post #20 of 43 Old 02-15-2014, 10:04 PM Thread Starter
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Quote:
Originally Posted by Mr T81 View Post
+1. The hardest part of this project is to remove the old mid-pipe/y-pipe...
I have learned this already...
For now I'm going to leave the Y in place. The low exhaust has some work to do to it before it's ready. So the OEM exhaust will go back for the spring when I get my safety inspection. They also test for decibels. Once it's done, it's done! Then the low exhaust goes on!

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post #21 of 43 Old 02-15-2014, 10:05 PM Thread Starter
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Quote:
Originally Posted by g00gl3it View Post
Looks sweet! The lines fit the bike very well.
Thanks. I thought you would like it.

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post #22 of 43 Old 02-15-2014, 10:15 PM
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Quote:
Originally Posted by Mr T81 View Post
+1. The hardest part of this project is to remove the old mid-pipe/y-pipe...
Yup. Not too bad if you can lift the back end of the bike and drop the rear axle and take out the hugger. Then it's cake.

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post #23 of 43 Old 02-16-2014, 04:28 AM
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That is a nice look. When I first bought my vfr I was going to buy the FMx apex pipes for it cuz it looks badass. Went with lazer extremes because I got them real cheap


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post #24 of 43 Old 02-16-2014, 07:08 AM
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Looks excellent! Any idea where the hole in the can came from?

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post #25 of 43 Old 02-16-2014, 07:12 AM
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Very nice! From the back, that would look bad ass as a duel low mount. What did you think of it on the first ride? :P

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post #26 of 43 Old 02-16-2014, 08:06 AM Thread Starter
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Quote:
Originally Posted by rickard919 View Post
Very nice! From the back, that would look bad ass as a duel low mount. What did you think of it on the first ride? :P
I agree on the look.
And..... Eat my ass

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post #27 of 43 Old 02-16-2014, 08:09 AM Thread Starter
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Quote:
Originally Posted by marylandmike View Post
Looks excellent! Any idea where the hole in the can came from?
My guess is when they tried to weld the mount on, they went too hot. It's fairly thin stainless steel. Not sure why they didn't fix it though....

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post #28 of 43 Old 02-17-2014, 04:28 PM Thread Starter
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Cut the flange off, slip on fits perfectly. Bolted it up and fired up. The sound is awesome despite the hole it the back side. Now I need a clamp for the slip on, gaskets for the headers and a mount for the back end plus the slip on patched. Now I'm excited for spring!

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post #29 of 43 Old 02-17-2014, 04:49 PM
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That looks great! Love that can .... thankfully you saved it from its previously abusive owner, looks like they were trying to fill a pin hole and just kept blowing through.

You can MIG weld a patch on it with mild steel, it will hold fine but will rust .... try to find a performance exhaust shop and have a stainless patch TIG'd on. Oh and check with the can manufacture, you might be able to buy the end cap then just break the can down and reinstall the new part.

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post #30 of 43 Old 02-17-2014, 07:01 PM Thread Starter
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Quote:
Originally Posted by HeliMech View Post
That looks great! Love that can .... thankfully you saved it from its previously abusive owner, looks like they were trying to fill a pin hole and just kept blowing through.

You can MIG weld a patch on it with mild steel, it will hold fine but will rust .... try to find a performance exhaust shop and have a stainless patch TIG'd on. Oh and check with the can manufacture, you might be able to buy the end cap then just break the can down and reinstall the new part.
The end cap is titanium, CF body and stainless inlet. Im sure I can get someone to tig a stainless patch.

I'm really digging the look!!

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post #31 of 43 Old 02-17-2014, 07:21 PM
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It looks great, man. When I did my 900RR I wrapped the end of the header with metal exhaust tape to make a snug fit, then put some hi temp RTV sealant to make a good seal. To keep the can from rotating, I drilled a hole up through the bottom of the pipe on the can inlet through the header and put a stainless steel rivet in. It's held up great for 4 years and gives a little cleaner look than a clamp.

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post #32 of 43 Old 02-23-2014, 12:06 PM Thread Starter
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After getting an estimate for repair, my cheap ass is gonna try the $10 patch kit. Since its on the inside, I don't think it will be that noticeable. I've hears pretty good reviews of this product. Now it's got to sit for 4 hours and then there is another product that covers and seals it.

image-4064741350.jpg



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post #33 of 43 Old 02-23-2014, 12:18 PM
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That ought to work. It's on the inside anyway so you won't notice it.

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post #34 of 43 Old 02-23-2014, 01:04 PM
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Looks good! That should work just fine for awhile.

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post #35 of 43 Old 02-23-2014, 02:10 PM Thread Starter
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From the run up I've do e so far (driveway idle, no real load), it seams to stay fairly cool. Mind you, if I have to chase Rickard919 and MrT81 through the mountains again.... That will be under load...lol. I'm banking on this repair holding for ever... I still have the final part to do yet. It's the "cloth" wrap that sets as it gets hot.
Lets hope it works out.
The putty and mesh are setting well so far.


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post #36 of 43 Old 02-23-2014, 02:32 PM
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You make it sound like we're maniacs or something. Mr.t's the crazy one.

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post #37 of 43 Old 02-23-2014, 05:48 PM
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If you cleaned the surface really good it might hold forever. Worth a shot. There should be lots of air flow in that location, probably won't get super hot, I would be more worried about vibration and movement as you hit bumps and holes while trying to follow maniacs like Rickard...

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post #38 of 43 Old 02-23-2014, 06:30 PM Thread Starter
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I ran the bike for about half hour at 1500 rpm to try and heat it up to speed up the curing of the outer wrap. The mid pipe was real hot but the can was just warm at that location and cold at the end. Cold enough that ice was building up on the tip.
The area was cleaned up really good and I let it cure inside where it was warm. I'm pretty confident in it.

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post #39 of 43 Old 03-18-2014, 11:37 PM Thread Starter
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Sand blasted, exhaust can and mount welded on and weighed. 14 lbs


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post #40 of 43 Old 05-01-2014, 04:17 PM Thread Starter
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So I really like the new exhaust.

ForumRunner_20140501_171420.jpg


Fyi, the stock exhaust in its full form is a whopping 15.5kg.That's over 34lbs! ! 20lb savings!
ForumRunner_20140501_171445.jpg

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