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Tdm900 Exhausts


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#1 Jr5240559

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Posted 04 June 2020 - 09:29 am

Hi thinking of getting rid of the stock end cans, and replacing them with a 2 into 1 end can, just wondering if anyone knew the weight saving, Im not after noise or performance, just trying to make the bike as light as possible. Thanks in advance of any replys

#2 Nog

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Posted 04 June 2020 - 11:05 am

I think someone on here posted about it.  Not sure it saves much, just changing from the OEM's to aftermarket saves a huge amount.  Going to 2 to 1 just knocks off another couple of kg, which wont amount to anything once on the road.

 

If you really want one, there's one currently on ebay though that looks good - https://www.ebay.co.uk/i/153931526985



#3 Favs

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Posted 04 June 2020 - 11:59 am

Complete GPR system 2:2 weighs less than 1 std silencer IIRC

 

Gotta agree with Nog - once moving on the road it won't matter and I don't believe the difference would be noticeable when wheeling it about in the garage

 

Edited cos of tricky memory


Edited by Favs, 04 June 2020 - 12:00 pm.

Single-handedly reviving the Wave.

 

2008 reg. Black TDM 900 ABS

 

 

 


#4 jiff

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Posted 04 June 2020 - 01:58 pm

Attached File  6C4A6BC4-055A-4221-9E89-EDCD06D68DD4.jpeg   160.73KB   2 downloads

 

(.....as previously)......this was custom made to my design by  Roy Osborn @ OS Stainless in the midlands.... beautifully made, but my ignorance, and theirs, resulted in a system which is slightly restrictive....if you’re inclined to pursue it, I’d suggest a bit more knowledgeable input would be helpful in order to retain / improve performance.....

Jiff



#5 Jr5240559

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Posted 04 June 2020 - 05:50 pm

Thanks for advice all, much appreciated 👍

#6 Bjørge

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Posted 05 June 2020 - 09:19 am

attachicon.gif 6C4A6BC4-055A-4221-9E89-EDCD06D68DD4.jpeg

 

(.....as previously)......this was custom made to my design by  Roy Osborn @ OS Stainless in the midlands.... beautifully made, but my ignorance, and theirs, resulted in a system which is slightly restrictive....if you’re inclined to pursue it, I’d suggest a bit more knowledgeable input would be helpful in order to retain / improve performance.....

Jiff

 

You state "slightly restrictive", would that imply "silent & similar performance to OEM", or actually tighter than the original ?

What did it cost ?


Bjørge

#7 Nog

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Posted 05 June 2020 - 11:33 am

Hard to tell but it looks like they merged the two pipes without using a collector that increases in size and allows the larger gas flow with the merged pipes.

 

Easy to affect scavenging if they didn't know what they were doing too.

 

Anyway, as above, I'd simply whack some nice aftermarket cans on and save the hassle.  Plenty have been tried and tested over the life of these bikes without issue at all :)



#8 TKH

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Posted 05 June 2020 - 01:27 pm

Just be sure they're not too loud and fail MOT, like mine did.......



#9 jiff

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Posted 07 June 2020 - 01:48 pm

snapback.png

 

You state "slightly restrictive", would that imply "silent & similar performance to OEM", or actually tighter than the original ?

What did it cost ?

 

.......my impression is that ‘rev-ability’ is slightly down on standard...I seem to recall that a visit to a specialist, hoping to maximise performance by electronic means, was terminated by their conclusion that the exhaust was restrictive, which would prevent their potential ‘mods’ from being effective....

The pipe is certainly not quieter than standard, with a pleasantly ‘barking’ and clearly twin beat to it... but never been an issue at MOT time.

...as I recall it cost about £450.....but I’ll try to research....& report back

 

Hard to tell but it looks like they merged the two pipes without using a collector that increases in size and allows the larger gas flow with the merged pipes.

 

Easy to affect scavenging if they didn't know what they were doing too.

 

Anyway, as above, I'd simply whack some nice aftermarket cans on and save the hassle.  Plenty have been tried and tested over the life of these bikes without issue at all :)

 

......seems to me the pipes gather into a ‘box’ (collector?) before exiting into the single ‘silencer’.

....as to “....whack on some aftermarket cans “ ....that’s an interesting variation on my own ongoing motivation, which would be to try to

refine the development of my bike (I failed, performance-wise - see above) but might indeed produce a result, depending on your priorities.




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