Stubbying Exhaust

[Mr_Chin]

Hi All

I've been tinkering with the idea of stubbying my exhaust for a while, and now that I have a rivet gun by my side, I'm seriously thinking of doing this butchery.

My question is:

Does it matter which end you cut the exhaust from to stubby it, i.e. the outlet end or the link pipe end. Is any end harder to put back together than the other - is what I need to know.

On another note, are stubbied exhausts legal (considering that I'm stubbying a road legal exhaust, with baffle)

Any advice welcomed.

Thanks.

Chin

[hovis]

what make is it?

it depends if you want to keep the logo on the can (if there is one)

i guess the are not legal, due to the noise, but if you leave the stamp on saying for road use, you might be ok?

[yorkie_chris]

Technically illegal, but with the baffle in you'll most likely be fine.

I cut from inlet end.

[Mr_Chin]

Technically illegal, but with the baffle in you'll most likely be fine.

I cut from inlet end.

Thanks for the replies guys/gals.

YC: I haven't seen the internals of an exhaust - Are both the inlet and outlet ends the same then?

Chin

[yorkie_chris]

Pretty much. Sometimes one end is welded, but you don't know untill you chop it. All you have in there is a perforated tube right through the middle, that fits into the end caps. Around the tube is wrapped some fibreglass.

Getting the endcap back on can be a PITA.

[Dappa D]

theres a few good threads on here with step by step pics etc, the most recent one which was very good, was by jimmyjames i think?.....also one by you wasnt there chris?....if anyone knows where they are please post the link!, now i have the bike back i was looking for these threads at the weekend but couldnt find them :-(

[yorkie_chris]

Yah I did a thread, but it was mostly a pic of me holding a grinder to it ... then a pic of it in bits... then a pic finished. I think jimmys one was more informative :-P

[hovis]

microns are a PITA to stubby

[vzzzbuxt]

i ran a bmw r1150 around for 6 months with a decat y-peice and 1/2 a remus can that upon first use blew any remenants of baffle 50ft out the back of it! i had to use it like that, sounded louvrely!!

[Lozzo]

what make is it?

it depends if you want to keep the logo on the can (if there is one)

i guess the are not legal, due to the noise, but if you leave the stamp on saying for road use, you might be ok?

How many times do I have to repeat this?

You do not legally need a BS, EC, E or any other markings on a bike exhaust. As long as the sound emitted is not what an MOT tester would consider too loud it is OK.

When was the last time you saw an aftermarket car exhaust with any EC, BS or E markings on it. Same applies to bikes.

[jimmy-james]

Link coming when i can find it wait a mo................................... Found it click HERE (http://forums.sv650.org/showthread.php?t=120722). Its a bit of a trawl (several thread replies) but i tried to get as many pictures together as i could, hope it helps.

JJ

[Mr_Chin]

Thanks Jimmy-james.

As your name was mentioned in my original thread I did a search on all your topics and found this thread already, but there are no photos/pictures showing up???

I think I've gathered enough information from threads on the org. for exhaust butchery, and will carry out the operation sometime this weekend.

Thanks again all!!

Chin

[Dappa D]

Link coming when i can find it wait a mo................................... Found it click HERE (http://forums.sv650.org/showthread.php?t=120722). Its a bit of a trawl (several thread replies) but i tried to get as many pictures together as i could, hope it helps.

JJ

:smt023

[jimmy-james]

Thanks Jimmy-james.

As your name was mentioned in my original thread I did a search on all your topics and found this thread already, but there are no photos/pictures showing up???

I think I've gathered enough information from threads on the org. for exhaust butchery, and will carry out the operation sometime this weekend.

Thanks again all!!

Chin

Feel free to have a look on my profile album mate all the pictures are in there. Go here! (http://forums.sv650.org/album.php?albumid=78)

Good luck and take some pics of the progress as you do it if you can as it would be interesting to see.

:smt023

You on the road yet mate?

[Dangerous Dave]

You do not legally need a BS, EC, E or any other markings on a bike exhaust.
Aye for an MOT, but the old bill wanna see a stamp though Lozzo.

[jimmy-james]

The police are not allowed to remove the BS stickers from Ebay which mine has got (i didn't put the sticker on mine but i know its not for road use)............. Also fitting one of these
http://www.optitune.nl/Image/dB-eaters-gr.jpg

helps a lot if you do get pulled. I got a cheap one from Ebay which works a treat without muteing it all together.

[Mr_Chin]

[quote=jimmy-james;1743778]Feel free to have a look on my profile album mate all the pictures are in there. Go here! (http://forums.sv650.org/album.php?albumid=78)

Good luck and take some pics of the progress as you do it if you can as it would be interesting to see.

Thanks Jimmy-james

That's exactly what I needed to see. I don't know/haven't posted any pictures on the web before, so I don't think I'll be able to post my butchery. I also don't have internet at home - I post at work only, so posting pictures maybe problematic (Sorry mate).

Thanks again.

Chin

[Dappa D]

You on the road yet mate?

Almost...fixed what i could, took it to my mechanic on monday (rode it there, bout 8 miles felt fine!) so he can put the standard main jets back in, and give it a general going over see if there is anything i have missed...a mirror is on its way to me from an .orger so I think i should be back on road by the weekend......:)...arm a bit sore after riding it to mechanic but nothing too bad ill just take it easy......i can crack on with my own stubbying soon;)

[jimmy-james]

Almost...fixed what i could, took it to my mechanic on monday (rode it there, bout 8 miles felt fine!) so he can put the standard main jets back in, and give it a general going over see if there is anything i have missed...a mirror is on its way to me from an .orger so I think i should be back on road by the weekend......:)...arm a bit sore after riding it to mechanic but nothing too bad ill just take it easy......i can crack on with my own stubbying soon;)

Good work fella:) Hopefully you will be a bit more limber by the spring/summer time so you can rebuild your confidence. If yo need any help on the stubbying PM me. JJ

[BigFootIsBlurry]

This is probably a bit of a newbie question but what it advantage of stubbying an end can? Is it just a looks thing (personally I'm not a fan) or does it give any performance advantages?

[jimmy-james]

This is probably a bit of a newbie question but what it advantage of stubbying an end can? Is it just a looks thing (personally I'm not a fan) or does it give any performance advantages?

Looks and a noise difference (a bit more raspy) :mrgreen:

[Lissa]

This is probably a bit of a newbie question but what it advantage of stubbying an end can? Is it just a looks thing (personally I'm not a fan) or does it give any performance advantages?

It's a looks thing yes, but more than that it's a noise thing:D

http://i72.photobucket.com/albums/i184/petevtwin650/orgphoto/MidlandSBrs.jpg


Our stubby

http://uk.youtube.com/watch?v=KiLe6d22I5o

[hovis]

It's a looks thing yes, but more than that it's a noise thing:D






but you lose bhp:(

[yorkie_chris]

Not necassarily, though the different length does lose you midrange.