Replacement exhaust system for XT600E
 

As we all know, the original steel exhaust and downpipe for the XT600E is heavy, cheap, rusting and very restrictive.

Can anyone recommend a replacment full system which will give more power without shaking the windows ??

Must be stainless so rust free !!

Ted,

Ive just replaced my OE system with a stainless steel Laser produro end can and a set of stainless steel headers.

Dont think they make much difference in the power but you do save on weight.

I bought them mail order from M and P in Swansea.

Hope this helps

Ian

Ian,
How much and do they sound nice? ;)
Matt

DAM DAM DAM and drat !!

Iv just gone to remove the headers and 2 of the exhaust studs are snapped and the others VERY coroded.

Suppose its an oppurtunity to replace them with quality stainless steel studs and brass Dome nuts like i was going to.

These guys do the downpipes too, OEM so fit the standard can.

http://www.quillexhausts.com/priceli...s.php?type=OEM

I jsut checked the M&P website.. They say they are only for the 95-96 XT600E. I thought they were all the same !! right ??

How do you find the quality Ian ?? will they last a RTW trip ??

How loud are they ?? Ta

For information - I fitted Motad stainless pipes to my 03 model. They fitted the standard silencer ok, but I had to spread the two front pipes as they were on the wrong centres (too close together by a couple of mm.). I've had similar problems with Motad when I put a system on a Honda VFR. In both cases the company's inspection procedures were poor as simple dimensional checks would have identified the problems. I went with Motad second time as I couldn't find anyone else. Luckily I have a strong workbench and a good vice as I had to put a bit of weight on to pull the exhaust connections away from each other. Quill may be better - I don't know. (I have no connections with either company).

Ted,

I phoned M and P and ordered a set for an 02 model, they fit okay.

If i remember correctly it was 95/96 on the website but they fit my 02 model fine.

As Boxer states a wee bit tight getting the headers into the cylinder head exhaust ports.

They seem to be good quality, just needed to modify the heat shield to fit correctly. The holes in the heat shield needed a bit of work with a round file.

I reckon they would be fine on a long trip, much better than the standard items.

One small point, where the end can meets the headers, on the OE set up there is a bolt which attaches the system to the frame. On the Laser set up there is no provison made for this bolt.

Cheers

Ian

What brand were your headers Ian ??

Motad ?? lazor do the exhaust pipe and "link pipe"

I though the exhaust was only 2 pieces, the headers and the silencer.

Did you get the road or the race lazor system ?? how loud is it ??

Thanks again and sorry for all the questions. More info the better :thumbup1:

Have you tried these guys ;
http://www.gazbike.demon.co.uk/index.htm

Gazelle - they made a couple of exhausts for me when I lived in Wales , good quality stuff and very definately stainless steel .

Arrow PD Replica. Very good exhaust pipe, much better than Laser
Produro in performances.

So... you guys with the straight through pipes (no baffle eg Arrow).

Did you require a jet change ?? Im guessing the bike will run a little lean now with the straight through pipe.

hi ted im in need of a complete new system for a 2002 xt 600e and was looking at these
http://www.predatorexhausts.com/hermes/shop/178,1,20

just wondering wht yas all make of these

cheers

Arrow
 

Hello chaps, i have an 1995 XT 600E and have replaced the the dirty great lump of rusty metal that mr Yamaha passes off as an exhaust for an Arrow pipe that is at least half the weight/size and sounds more like the bike should sound.
On the down side, it is stamped " not for road use" but has been buffed out using Autosol and a dremmel, its not too loud as to get any un welcome attention from mr Plod and i have kept the old one for for the mot, but the new one went thru without any problem.
I do think there is a baffel in there some where ? as you can take the end cap off the pipe and then it sounds like a tank and makes the windows shake !
You pays your money and takes your pick, but the Arrow is nice.
Cheers.
Del. :thumbup1:

i have motad stainless downpipes and lazer pro'duro can, both for earlier models, on my '97 XT600E and it all went together very well. assemble it loosely and then when you have it all where you want it pinch it up. (the rear pipe on the can is VERY close to the inside of the frame, 2-3mm, but has never touched or been any problem in 5 years). the steel is pretty soft stuff so you can always give it some scottish adjustment with your foot

arrow can
 

I had the Arrow race can on my 2003 Xt for a few months last year and found it just too loud for everyday riding, had 2 police officers who also agreed! It was a lovely bit of kit, well made and looked great did not rejet and performance did not change. Have now got the original "thing" back on but was looking at other road cans have checked out laser and the predator. Has anyone seen the DEP road can for the XT???? and I am sure I saw CRD make some header pipes has anyone got any experience of them?

i have the road legal predator pipe on now the hole system and it sounds pretty good / quiet in town with a nice thump thump when its got a load on it
onlt thing i was a bit worried abot the the system didnt line up correctly with the mounting holes on the rear of the bike it had to be forced up a few inches

predatorexhaust
 

i just had exhaust fitted today at predator,ovel can,is the nuts,ask for mark done an excellent job,good price,say jim with the tt600

Predator system
 

Just fitted a full system (road legal) from Predator looks and sounds great had to use a lot of exhaust paste to seal the silencer section onto the downpipes to stop it blowing though. Looks and sounds a lot better than the Laser can I saw on an XT the other day.

My bro fitted a crd header last year along with a remus gp silencer,They are both very light and a beauty to look at.
The header is also a bit wider inside i think and the silencer wont wake up
the dead.At least the street legal version wont.
As for the main jets im really confused.Dont even know what to do with
my bike.
Theory wants increase in main jet number as airflow increases.
The XT however seems to dislike any change and last week i was told
that even the dynojet kit doesnt contain main jets,wich means it doesnt
need any change there unless heavily modified.

advice needed?
 

After fitting the predator system and pipercross filter my 2003 XT feels a bit under powered has anyone got any ideas? I was thinking of fitting a dynojet kit but I want to keep the bike a reliable as possible and keep engine mods to a minimum. I am certainly not a mechanic but any advice I can pass on to my local bike shop would be great.

Did you get the road legal predator or the window shaker ???

When you "open up" the breathing on a bike you often increase power higher up the rev range and sacrifice lower end grunt.

You may have made the mixture too lean which means carb adjustment will be necessary.

If your going to a garage, say that you want a gas analysis done on the exhaust. This will determine the correct air/fuel mixture. Its just a case of hanging a probe in the exhaust so dont get ripped off.

Predator system
 

Hi I got the road legal system because my previous experience of the Arrow race can was just too loud for the Sussex police. Thanks for your advice will go and see my local bike mechanic with the info. Have you got any experience of the dynojet kit I was interested in the pros and cons?

If you have the road legal kit then it will have a restrictive baffle in like the original.

It should not cause an issue.

Can you give anymore info to why you think the bike is down on power ??

predator system
 

Not exactly sure what makes me think the XT is down on power just seems different under hard acceleration. It has also popped a few times off the throttle but all the joints are well sealed, I will give it a nice long blast this week and report back.

A certain amount of over run is normal but popping is a sure sign of a lean mixture. The popping is unburnt air detonating in the exhaust.

Your Xt may not be down on power but It may feel like it.

The original exhaust is highly restrictive to pass emmision laws which gives flat spots in the powerband. As you come out of the flatspot you get a surge of power.

With an unrestrictive exhaust, the power delivery is smoother so you dont notice a surge which leads you to belive the power is down.

See what top speeds you can get and 100m sprint times etc.

predator exhaust
 

I think you have hit the nail on the head! The delivery does seem smother which could be fooling me. As far as the popping do I still need to get the exhaust gas analysis done?? Thanks for your help at one point the exhaust popped so loud I nearly fell off!

yes,that does seem a little lean with loud pops.

Maybe has somthing to do with the filter too.

Get a gas analysis to be safe.

Im after getting a full stainless system for my bike but i want a road legal system as the neighbours diddnt apriciate a race can @ 6am when i go to work :p

Can anyone put a link up to the predater system ? or the produro exhaust syatem ? i quite like the looks of the produro though

Link to Predator
 

stainless steel car and motorcycle exhausts - YAMAHA XT600 E (4PT1-7) 1995-04 TWIN SILENCER HANGER MODEL BSI E11 ROAD SYSTEM IN STAINLESS STEEL

Here is the link to the Predator road legal system i fitted to my 2003XT. I can highly recommend it. Just make sure you get some new gaskets and exhaust paste also available from Predator. Its not what I would call quiet but its legal so who cares!

Those nasty studs
 

Ted how did you go with your broken studs..
Mine had 1 broken stud, on removing the other 3 (after soaking in penatrine for about 2 weeks) I managed to snap another. I then decided to remove them all and replace them with Stainless studs. the threads in the head were so damaged by the original rusty studs I just Helicoiled the lot. Mind you my motor was (and is) out of the bike.
Consider that the Stainless studs will not be as tough as a cap screw and may only be as tough as a mild steel stud.. Point is they break.

I had to drill and collaps my broken studs. If you use an easyout be very careful. I expect it won't work and of course if you break it in there the job becomes much larger.

The studs on the XT are a majot design flaw. They are far too thin.

I had two broken studs. One just had enough left for me to weld on a nut and remove it fairly easily and the other one I had to painstakingly drill out. I put a time-sert in instead of a helicoil because they are much stronger.

I dont think stainless is a good idea. Its not nearly as strong as the original but im interested to see how you go.

I used PLENTY of copper slip on reinstallion and I plan to change to change them every 2 years.

To get them in and out easily, just put 2 nuts on the stud. Tighten them together to create a lock nut effect.

I an still considering getting (or probably making) some brass nuts. Just like the old morris had..
Again the issue is the strength.
How much pressure is realy required to hold the header in place?? Maybe I'll use a second copper gasket..

Two gaskets will start messing with alignment and may effect the seal.

Brass nuts should be ok. I think just applying copperslip and cracking them lose every now and then will be fine.

Hi. I've found that Pro Circuit makes the header pipes for the XT600E here is the link:

Pro Circuit Products

they cost US$324.95

I also know that there is at least one more header pipes for the XT600E... they are the best looking one I've ever seen... the two tubes that go into the cylinder fit in the "Y" on the main tube and locks with springs... it looks awesome and is stainless steel... I've had the link for the website who sells it but I've lost it.. :rolleyes2: anyone got it?

I have a Laser stainless system on my 3AJ XT600 it is about 6 years old.
The exhaust and down pipes are fine but the clamps that hold the down pipes to the cylinder are very badly rusted and need replacing which means getting new ones made or buying another set of down pipes.
I also have a CRD absolute power 2 on my TTR 600 this was ok untill the baffle inside the exhaust fell apart. I got a new baffle from CRD but the packing for this silincer has been discontinued ( it was like a foam tube that fitted over the baffle in 2 pieces) so had to roll some packing around the baffle. The bike is now too loud.
I have an arrow system on my other 3AJ it has NOT FOR ROAD USE on it but is not very loud.
If I had to buy another pipe I would get another arrow

i knocked up my own '1 of kind' exhaust at the start of the year. the silencer and link pipe was originally off a yzf250 mx bike. Unused from new i picked it up cheap from a friend and made it fit with some cutting, shaping and tig welding. It actually looks quite 'factory' if i do say so myself. And sounds great. You can see the general idea of it in this pic. I would like the stainless header to go with it but the shotblasted and heatproof painted header will do for now
http://i183.photobucket.com/albums/x...k/DSCF0298.jpg

it's the devil one, you can find it at KEDO - Performance Products for about 139 euros...

here the link
KEDO - Product Details

YOU FOUND IT!!! I owe you a drink! ;P I'm gonna buy that one... ohhh yeah =D