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Dual Exhaust Modification

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Snipet
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Joined: 02 Apr 2012
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PostPosted: 14:27 - 17 May 2014    Post subject: Dual Exhaust Modification Reply with quote

Hiya guys and girls,

I'm ready to get some comments stating how stupid I am, but I'm genuinely curious and unsure if its possible.

I've got a heavy case of OCD with things being symmetrical, and on my beloved GSX650F the exhaust is one sided.
Is it possible to make a modified dual exhaust?
Was thinking just keep the old one but make only 2 tubes go to it and make the other 2 go to a new one made for the left hand side.

Half of me is saying of course it would work, why wouldn't it.
But the other is saying it will mess up the running of the engine by altering the way the exhaust gasses are removed.

Any one able to shed any light on whether it would work or not. and details on why either way.
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Forth Bike Honda VFR 750cc Fifth Bike Honda NT650 Deauville Fifth Bike Suzuki GSX650F
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Wafer_Thin_Ham
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Joined: 18 Nov 2005
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PostPosted: 14:32 - 17 May 2014    Post subject: Reply with quote

It'll work, whether or not you'll have to alter the fuelling to make it run correctly is another issue. If it bothers you that much why didn't you just buy a bike with an exhaust on either side like a TRX850/Honda SP2 etc?
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Snipet
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PostPosted: 14:41 - 17 May 2014    Post subject: Reply with quote

I've wanted a GSX-R ever since I started riding, but funds for buying and insuring have not let me as yet.

Found a very nice GSX-F with-in my budget for both buying and insuring.
So went with that while I wait for more money and NCD.
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First Bike: Pulse Rage 125cc Second Bike: Kymco KR Sport 125cc Third Bike: Kawasaki ZR7-S 750cc
Forth Bike Honda VFR 750cc Fifth Bike Honda NT650 Deauville Fifth Bike Suzuki GSX650F


Last edited by Snipet on 14:56 - 17 May 2014; edited 2 times in total
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bikertomm
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Joined: 03 Jul 2010
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PostPosted: 14:45 - 17 May 2014    Post subject: Reply with quote

Snipet wrote:
I've wanted a GSX-R ever since I started riding (even though they also have a single exhaust system), but funds for buying and insuring have not let me as yet.

Found a very nice GSX-F with-in my budget for both buying and insuring.
So went with that while I wait for more money and NCD.


Then keep it nice and original instead of butchering it, then once saved get a GSXR?

Win. Thumbs Up
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Snipet
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Joined: 02 Apr 2012
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PostPosted: 14:55 - 17 May 2014    Post subject: Reply with quote

Hehe fair enough, would probably cost me a fortune to buy tubing, get one mocked up, fitted, new exhaust for other side.

Probably more of a 'is it even possible thought' than a 'I have to do it' one.

On that 'is it even possible thought' though, if you dualled the exhaust after the catalytic converter would it actually change the running on the bike at all? as this is where the gasses are first collected.
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Forth Bike Honda VFR 750cc Fifth Bike Honda NT650 Deauville Fifth Bike Suzuki GSX650F
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TUG
World Chat Champion



Joined: 12 May 2007
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PostPosted: 16:17 - 17 May 2014    Post subject: Reply with quote

_Iain_ wrote:
Snipet wrote:
...while I wait for more money and NCD.


4-2 headers @ £300-500ish?
Pair of cans @ £300? a can inc link pipes
Hangers £20?
Can straps £10 each
Link pipe gaskets @ £10-15, two required
Manifold gaskets & £10 each, 4 required


Cans
Use stock header, just get someone to weld a link or anther port on. £60-£180? CHR15 might be able to help for a nice price although he is a very busy person.
No need for straps with those cans, modify an adapter maybe?
No need for links, never had exhaust link gaskets on a bike, never failed an MOT or leaked,
Manifold gaskets at £10 each? Made out of gold? Laughing
Hangers will need modding/moving so need a welder for that, Fail to see the £1200+ price tag?

Iain your a parts man right? Not all prices are the same as yours. Wink
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clancy
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PostPosted: 20:02 - 17 May 2014    Post subject: Reply with quote

Custom exhaust fabricator, my mate done this to a hornet and customer under £400 all in if I remember right

Custom made pipes and cans for it, he just altered the rear fairing himself and then sprayed it again
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andys675
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Joined: 08 Feb 2007
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PostPosted: 19:15 - 18 May 2014    Post subject: Reply with quote

GSXR's only had 2 silencers as they couldn't get them quiet enough with one, must be the same for a lot of bikes, firestorms etc, twice the silencers, twice the silencing?
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MarJay
But it's British!



Joined: 15 Sep 2003
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PostPosted: 16:55 - 19 May 2014    Post subject: Reply with quote

How to add weight and make your bike slower in one easy lesson.
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deeds
Nova Slayer



Joined: 16 Feb 2010
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PostPosted: 17:30 - 19 May 2014    Post subject: Reply with quote

Anything is possible with enough money thrown at it, but its probably cheaper and easier to sort your OCD out Wink
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serlant
Brolly Dolly



Joined: 06 Jul 2009
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PostPosted: 17:50 - 19 May 2014    Post subject: Reply with quote

this may seem stupid but is there not a way to just hang a second exhaust and not actually connect it? just hang it so its symmetrical if thats what you really want. no need to change the fueling or mess around with the current system. seems stupid to me aswell. but i'm quite happy with it looking unsymmetrical with 1 exhaust.
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The Shaggy D.A.
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PostPosted: 18:10 - 19 May 2014    Post subject: Reply with quote

If you're really OCD, you'll need a chain and sprockets on both sides, too.
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Snipet
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PostPosted: 19:29 - 19 May 2014    Post subject: Reply with quote

The Shaggy D.A. wrote:
If you're really OCD, you'll need a chain and sprockets on both sides, too.


Can you do that? or would i need another engine to run the other chain? Laughing
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Forth Bike Honda VFR 750cc Fifth Bike Honda NT650 Deauville Fifth Bike Suzuki GSX650F
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SteveZZR
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PostPosted: 10:29 - 20 May 2014    Post subject: Reply with quote

Why didn't you just buy a ZZR600?

Twin Can
Similar bike to the GSXF in every way

except it's more powerful, better looking, less tax (599cc bracket instead of 600cc+), probably cheaper to insure too.
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Wafer_Thin_Ham
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PostPosted: 12:11 - 20 May 2014    Post subject: Reply with quote

SteveZZR wrote:
Why didn't you just buy a ZZR600?

Twin Can
Similar bike to the GSXF in every way

except it's more powerful, better looking, less tax (599cc bracket instead of 600cc+), probably cheaper to insure too.


The OP wanted a GSXR, and said he found a nice GSXF so bought that.

I've already suggested just buying a bike with two cans already. Far too obvious. Razz
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