Single exhaust superduke??

I'm looking for a better sound some weight loss and hopefully a little more HP from my 06 SD.
In a conversation with a custom exhaust builder he casually said that the best setup would be a single cannister exhaust. This got me thinking, and since I live in New Zealand where everything costs 3 times as much as the rest of the world, I thought that maybe there would be a savings here too. So I have got myself a new, single Two Brothers Racing M2 carbon fibre can (a slip on for a Suzi gsxr 1000) figure this can should be designed to cope with as much horesepower as any bike out there.
I am having a custom stainless connector pipe fabricated, and will have the single muffler exiting on the right hand side. I plan to do before and after dyno runs to make sure it works and also hope to see if I can get the dealer put in the Akro mapping for me.
Would like to find out if anyone has done or heard anything on this kind of setup?

I like this one.


I don't think there is enough room to put one under the engine.

Pieces are slowly coming together.

Excellent Will - keep us updated. I like quiet and have a brand new Fireblade 954 can that I'd love to use though it's prolly a bit long

I don`t know how quiet it'll be, the video farther up sounds great to my ears.

My stock muffler weighs 24lbs, Leos 11-12lbs, this setup should be around 6-7lbs. Less is more. bikes going on a diet as funds allow.

Recent monetary setback means that I might take a crack at it my self, I have a custom pipe builder that lives across the way that I would prefer to use but have to pay my speedtax first.

Don't hold your breath waiting for an update, they'll come just don't know when.

A lot of 990 Adventure riders have 2 into 1 to make room for a tool tube or aux fuel tank. I purchased my set up from HT Racing and they supply the y pipe and a FMF slip on for a Yamaha R6. It usually results in improved mid range power with no improvement to top end. I had a 04 Tuono with 2 into 2 exhaust and a factory 2 into 1 set up with a Akro slip on. When I sold the bike I parted out the 2 into 2 set up and reinstalled the factory with 2 into 1 and was surprised at the improved mid range power.

Tickets paid and will get back on this soon.
Looks like I'm going to mount it low. Easiest and best for weight placement, not too concerned with ground clearance as this thing never sees a track.
More mid range power would be nice

Stainless U bend, 2 3/8" to 1 3/4" reducer, springs, etc. ordered today, now waiting...

Looking forward to seeing how it turns out..
Definitely tidy up the rear of the bike..

Package arrived from Burns. Will start mocking up tomorrow.

Indy, What did you end up doing

Swingarm clearance wasn't optimal so it's going to stay high-mounted.

Completely changes the look of the bike. Will be interesting to see if there's any changes on the dyno or the power delivery.

I believe it was in one of the now dead links farther up. Maybe Bert can get the links back up. I remember him writing that they found the Photos section in cyber-space so you never know.

Did a quick search and came up with nothing. Same on youtube. Maybe he posted the vid on Vimeo or....

I was thinking the sound was tainted for poor quality...but...the shape.??? Somehow it seems that there would be a drastic change in power delivery..Maybe too much back pressure..??? It's more like a trumpet..

That's the one!
What's the general improvement in having one over two?
Just weight? Or better power as well?

[quote="Linga"]That's the one!
What's the general improvement in having one over two?
Just weight? Or better power as well?[/quote}

ok... so on V twins... a 2-1 pipe will generaly increase low end tourqe... off the line power, out of corners, etc... also weight reduction in my case.

I have the CBR1000 muffler being modified to have an internal race baffle... the shop says that there dyno showed 8hp (With the race baffle) more than a yoshi pipe on a CBR1000.... 8hp is a lot on a bike

The thing that i always thought about the duke is why did they design the 2-1-2...

the extractor effect of the collector (joint of two pipes) is optimal ....but

straight open pipes are great for WOT... so.... my other idear is for two seperate pipes that never join.... $$$ and time are the problem

Looks killer. Same pipe I had on my CBR 1000rr. You shouldnt have any problems with that single setup being that Ktm stuffed both cylinders into 1 pipe before the twin mufflers. Might as well just run the single pipe(but where does the lic plate go)?

Might as well be straight tubing right out the back. Wayyyyy too loud for a street application IMHO.

I've got the carbon oval Leos on my bike. Fired up without quiet core inserts and was shocked at the volume. Installed the inserts before the first ride.

I have carbon Leos too..didn't have the db killers when I first installed them..From stock to uncorked the Leos blew me away.!!! They sound bad ass.!!! But..was affraid to ride on the street for fear of the po po...))))

More roughing out...



Hope to have time to get this thing welded up next week.

Nice work Willh.

Any shots from a little further away, side or back?

TIA

+1

is it my imagination or does that look like a tiny little inlet to the muffler? on a stock SD, the pipes leading into each muffler look a lot bigger diameter than the one you have going into a single silencer. what the point in restricting it like that???

looks real good> Dont ruin it with crappy welds!lol No pressure

I'm calling the SD abuse hotline.....That bike is filfthy! Wash it man...have you no shame?

Good luck wtih the experiment. Suppose it'll be next spring before we will know the results.

OK, wife said it's a bit loud, I don't know what she's talking about, I can't hear a thing Probably packed the can too tight and I'm in need of a new graphite ring, she leaking badly there.

Photos possibly Sunday, tomorrow, make-do tail tidy and hanger bracket to get back on the road.

Almost done but kind of roadworthy so done for today. Haven't TIGed in a few years and it shows well at least their strong and done by myself. Might wrap them anyway.

1Celsius, sun is low, visor fog, trees add strobe effect, sand, salt, cold dead tyres so haven't been able to get a good feel for changes. Feels good in the bottom. Feels lean in the mid range but that's probably more to do with the temperature... top-end, wasn't going to push my luck.

The sound? Much nicer than my Leos with the baffles, almost quieter at idle, deeper, throatier and just as loud farther up. Hurray for me! Very pleased

The truth about power will have to wait until the road conditions and weather are better. She should be wearing some new shoes by then too.

Good job bro..!!! sounds like you set out and accomplished your goal..That always leave ya warm and fuzzy...lol..

Nicely done I like it. Props for doing your thing yourself

Just another idea of a 2 into 1.I still have to tidy it up a bit.http://s827.photobucket.com/albums/zz19 ... 3978-1.jpg

SilverB... Email your photos to my personal address (not the engineering one)... I will load them up for you in a bigger resolution... Really nice work though

there you go mate

love the front disks... love the carbon BST's even more

and im digging the alternator cover being painted black

Thanks Mr Z.I am not very good at posting pic's but I did use IMGUR which was a great help.Cheers

Very nice Silverbear

I believe we should have pictures of a single under-tail by now also....

NIce Silverbear. That is the same routing that I have been thinking about . Under the swing arm that will keep the exhaust heat away from the shock. Shorter, more direct route out. Nice and clean. That rear seat area / side cover really looks finished to me also, un like the SD. 2X thumbs up. Hum....Wonder if that SM tail would fit the SD

To keep this thread going I have something in the works?????? Give me a week to post some pics up.

I saw a picture of two side by side reverse magaphones capped with SuperTrap disks in stainless steel. Looked reallll nice. It was on a 650R Ninja motor used for flat tracking. Might have a chance of being a tat quiter and more stealth than that shorty pipe above. It was on the ADV forum. I will see if I can find it again.

Can't wait to see it finished...and hear it bro..!!!
It's looking...shall I say..
KILLER.!!!!

Great stuff .

the advantage of an under the seat single is surviving a crash without trashing a 1,700 $ set of titanium Akra's slipons .

My biggest fear at this point ! HA !!!

Almost done. Waiting on the baffle I ordered to seal it up. Still need to tig it all together as it is tacked together as of now. The internals are gutted and increased from 2" to 2.5". Same size as the up pipe on the Akro headpipe. I want to start it so bad

Start it!
Start it!
Start it!!!

If the baffle shows up tomorrow I will post a vid of it. And yah Im tempted!!!

Looks nice! How much weight did it save?

That Looks pretty trick, nice work!
I didn't think it would look very good to be honest but all the custom work you have done on it really makes it look part of the bike.
Can't wait to see it all back together.

This is the difference in the outlet size.

All done! It sounds so f@$kin cool. If I can figure out how to load a video I'll get it up.

By the way. It seems to have smoothed out the low end considerably . It pulls smooth all the way to the top while emitting a sweet sound that I can't explain. Throaty with a little rasp.

Workmanship looks good!

How loud is it?

Great job bro..!!!
I gotta hear 'em..!!!
EDIT....
Hear IT..!!!

Fook'n Gnarly man

Looks awesome!

Thanks guys.

I bet you lost 18 lbs compared to the stock anchor. Nice. I want...with the SDR solo seat

If anyone is looking for other ideas... I just came across this post on ktmforum.eu:
http://www.ktmforum.eu/forum3/wbb/990-s ... -1-system/

kowekiller, your pics are

(you will need to be logged in to see the pics)

I wish I could understand what they are saying. Looks like a god site!

F@cking gorgeous bikes! Especially the "Road Hero". I really want a set up like that, with teh front head light. My only complaint on the 05 06, head light mask is just to big. Moto gp side exhausts, real low slung are awesome. this is a great thread.