Adversities of fitting non-specific exhausts?

[allantheboss]

The range of exhausts for XJR1300s is quite limited. They're all quite boring, don't look nice or aren't road-legal.

What are the implications of fitting an exhaust which isn't publicised as for an XJR? Say they fit, and they're road legal- is anything drastic bound to happen?

For example, fitting one of these to a 1.3 litre bike: http://www.demon-tweeks.co.uk/motorcycle/exhaust-systems-silencers/bike-it-universal-silencer-cone

I assume that apart from build quality there will be something unsuitable about it. Like it will run badly or produce bad fuel economy.. What could possibly go wrong?

As for chopping down the stock exhaust aswell: Aren't stock exhausts nowadays (as opposed to straight-through exhausts) designed to bounce exhausts back and forth a bit before blowing the fumes out? So cutting it down will interfere with the design and have more drastic effects than just shortening a bit of metal?

Thanks!

[STRAMASHER]

Have u checked out a set of Campbell's ? Lots of folk like them on the GSX.

Always liked the carbon twin high level Devil exhausts on your bike too.

I went for a full system on my gsx14. Lose a ton of weight, uncork a load of bhp, and no loss of torque anywhere (with a pciii). I imagine the xjr is similar?

[Dicky Ticker]

I have just stubbied a sports exhaust for my Triumph. First was to make sure the connection to the down pipes is compatible as in diameter.Second being the exhaust hanger,I had to make a suitable bracket as the original fitting just would not let me get the right angles and spacing from the rear wheel.Fortunately I have plenty of time and the facilities to do it.
I would ask for a cast iron guarantee from the supplier that they do fit and can they supply any link pipes and mountings that may be necessary-------failing that will you get your money refunded,after all it is not a cheap item.

[allantheboss]

Have u checked out a set of Campbell's ? Lots of folk like them on the GSX.

Always liked the carbon twin high level Devil exhausts on your bike too.

I went for a full system on my gsx14. Lose a ton of weight, uncork a load of bhp, and no loss of torque anywhere (with a pciii). I imagine the xjr is similar?

Funnily enough, I bought an XJR slip-on from Campbell, but it was the worst craftsmanship I've ever seen and almost immediately asked for a refund. They look good but it most definitely was not worth what I paid. Devil don't appear to make exhausts for the XJR either?

I have just stubbied a sports exhaust for my Triumph. First was to make sure the connection to the down pipes is compatible as in diameter.Second being the exhaust hanger,I had to make a suitable bracket as the original fitting just would not let me get the right angles and spacing from the rear wheel.Fortunately I have plenty of time and the facilities to do it.
I would ask for a cast iron guarantee from the supplier that they do fit and can they supply any link pipes and mountings that may be necessary-------failing that will you get your money refunded,after all it is not a cheap item.

Sorry, but I don't understand what you're saying after "I have just stubbied a sports exhaust for my Triumph". If you stubby an exhaust why did you have to change pipe fitment? I thought it was just shortening of the silencer?

[NTECUK]

You can "Core" stock exhausts .
Not a first time diy job though.
If you don't know how to stubie (shorten )an after market one .Don't go there

[Dicky Ticker]

I removed the original exhaust and made a stubby out of a damaged sports exhaust,but I had to cut off the section that had the mounting bracket on the modified sports exhaust and shorten it by 8". The bracket was at the front section so the end with the connector pipe had to be angled and refitted. Make up a new mounting bracket to accommodate the change in shape.This meant removing the front expansion chamber and making it into a straight Brooklyn type pipe exhaust
Normally it would be the rear section that you shorten thereby not altering the angles of the connector pipe and utilising the existing mounting bracket.

If it is of any use to you N.Parker of Newark is a custom exhaust manufacturer and will make any parts you may need to fit your choice of silencer.

[allantheboss]

I've contacted a few companies asking if they'd shorten their standard-length 380mm exhausts to just 300mm for me. Pipe Werx and Beowulf both said they would, but it'd mean it's not road-legal. They will still have baffles in them they'd simply be 80mm shorter. How much louder could they actually be? I want it quiet enough to not need earplugs.

[allantheboss]

And just out of interest, here are my options. What do you think I should go for, fitted on a black XJR1300?

1. 225mm stainless plain for £100
http://www.ebay.co.uk/itm/SS70-Oval-Stainless-Steel-Exhaust-Silencer-Muffler-Yamaha-XJR1300-07-11-/280933298070?pt=UK_Motorcycle_Parts&hash=item4168edef96

2. 300mm stainless plain (possibly road legal) for £145
http://www.fuelexhausts.com/details.cfm?ProdID=2398&category_ID=8&scndctgry_ID=154

3. 300mm stainless carbon tip £220
http://www.beowulfuk.com/proddetail.asp?prod=YA143OMSS38CE

4. As number 3 but in black and £235
http://www.beowulfuk.com/proddetail.asp?prod=YA143OBSS38CE

5. 300mm stainless carbon tip £205
http://www.pipewerx.com/pipewerx_bikes/products/pipe-werx-sl-gp3/yamaha/xjr-1300-07/yamaha-xjr-1300-07-stainless-steel-oval-carbonedge-street-legal-exhaust.html

6. Same as number 5 but in black and £220
http://www.pipewerx.com/pipewerx_bikes/products/pipe-werx-sl-gp3/yamaha/xjr-1300-07/yamaha-xjr-1300-07-powder-black-oval-carbonedge-street-legal-exhaust.html


Ignore what the links say about lengths, just use the links for pictures; I can get them all at 300mm. They'll all have baffles. Which should it be?! I like the carbon tip black ones, but I'm going for a retro sorta look, simplicity and "less is more" so maybe the carbon black will hinder this and just look street-racer..

[DanSp]

Have you thought about having one custom made for you? A friend of mine has just had a pair made up for a custom project by SpEngineering and then had some new link pipes made my infinity exhausts! Maybe worth a look??


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[STRAMASHER]

Devil don't appear to make exhausts for the XJR either?





They do. But the prices are salty.