Long term usage review question
 

Hello guys.
Last week got my leovince stolen from my tenere. Was about to get my stock exausts but found this thread and got curious about this exaust.

I like the idea of a lower sound as you guys report and the assimetry of a single one, but since i know nothing about this exaust i would like to know, from the people that have it for a long time if they are still happy with the buy.

My yamaha center warned me to don't try these but what better review than from who uses it? :D

Thanks in advance.

On a side note: Any of you considered ways of making harder to steal the exausts? I already got an alarm but i'm thinking of ways on fixing the exaust in a not so easy to remove set.

Not sure why your dealer would advise you not to get a single can... unless he/she was hoping they could flog you the official accessory Akrapovic cans which cost a small fortune? ;)

I am more than happy with my Exan. It's been on the bike nearly two and a half years and still looks and sounds as good as new. The only thing that perhaps draws justified criticism is the hanger you get in the kit, it could be better thought out and it supports the can right at its end. This means there's quite a big distance between the Y-pipe mount and the silencer mount, leaving a large length of the system unsupported. There has been one instance where a titanium can spilt which I think probably happened because one of the rivets tore on the lower front end of the can due to it trying to pivot slightly due to the way the standard mounting is set up. However, the forum member in question had his can replaced by Exan, so everyone's happy. As far as I'm aware no one else has had the same issue. Incidentally, I did not use the mounting bracket supplied.

Do you know what... I have never, in thirty odd years of motorcycling, heard of anyone having their exhaust stolen before! It isn't a common problem. All I can suggest is fitting security or shear bolts if your worried about it. The downside though is if YOU want to take it off you'll need to drill the bolts out!

Thanks man. I think its just my luck. The screws should be enough, already searching for some.

And congrats for your idea on the tube storage.

I have just changed from my Leo Vinces to the Exan. Firstly I must admit I really loved the Leo Vinces. Really well made and certainly more power than stock.
I still can't believe how quiet the Exan is compared to the LV. Not sure if its robbed a bit of power compared to the Leo Vinces, but maybe thats just because its so quiet.
The good news is that the Leo Vince bracket (which I hope they didn't steal) is great. I just used it and it works perfectly. I don't think you can go wrong with either. In my book this is the best mod, apart (for me) from the stock saddle. More power and a big saving in weight in the wrong place.

They took everything, just left one spring and a nut (maybe lost it in the dark).
I really loved Leo Vince but sometimes i thought to myself if they weren't to loud. Hard to talk with girlfriend ;). But i was used to having a sound that every car listens far away.

They were loudish but not offensive and popped a bit. The exan don't pop. I forgot to pinch off the AIS but it works so well I won't bother. I have just made a copy of that LV bracket for my exan. 2mm stainless plate off eBay a bit of sawing drill 4 holes and you're away

Cool, going to buy the Exan. Do you guys think the catalyst is mandatory?

You'll have to check the specific regulations in your country, but generally in the EU it is not required on a Euro III compliant motorcycle once it's been sold.

But you know if it affects the perfomance? In my country (Portugal) they already talked about mandatory check ups for Motorcycles (as is done for cars) but European Union said they couldn't.

Very roughly a standard type (not high flowing/sports) cat will rob about 5% (2-2.5hp). This generally accounts for the 2-3hp gain most people see when fitting aftermarket cans - the gains are actually nothing to do with the cans themselves, more the lack of a catalyst.

Bottom line is, you don't need one, so don't fit one.

Hi everyone,

I'm planning a trip for at least a few weeks with some soft luggage on some GIVI pannier frames. Has anyone had any experience of the Exan single melting soft luggage?

I'm out of the country until three days before my trip and can't test it myself, but could buy a heat shield while I'm in the US if I have to (I'd rather not).

Thanks in advance folks

I'm using the Wolfman soft luggage with no frames at all. I can't foresee any problems as my exan pipe stays lovely and cool. I used the same bag with my Leo Vince pipes with no frames going to Luxembourg and back and it worked fine. Sometimes we over ingeneer and try and solve problems that don't exist

Perfect, exactly the reply I was hoping for! A few quid saved

And far less weight, which means more speed, better economy. Less is more.

Hello,

I finally bought an exan oval x. Very light and noticeable improvement in engine smoothness.
Sound is great at idle/engine breaking but... a bit too much for me when "loading" the engine. I guess even low speed riding would get tiring without ear plugs.

I was thinking about brazing some of the holes on the db-killer, does it make sense?

Could you possibly post a picture of your dB killer? It'll be easier to pass comment if I know what it looks like. It is quite possible that the Oval and X-Black versions have different types.

My Exan dB killer insert doesn't have any perforations. It is just a simple solid tube with two stand-offs and a solid disc like this...

http://s12.postimg.org/oppnyiod9/j5gete.jpg

It is an "oval x black" http://www.mad4exhausts.com/en/yamah...e-x-black.html

So not oval, looks exactly like yours externaly in your first post (it seems your picture is used by the madexhaust website)

Maybe i'm wrong but withoug dismounting the db-killer it looked like there were holes in it. I will pull it out and take pictures tomorrow.

Ok so my db killer is really different than yours, here are the pics...

db killer fitted, there are two walls at the end of the db killer so it takes the whole diameter of the pipe => air is forced inside the smaller cylinder of the db killer:
http://i.imgur.com/X4YmgZY.jpg

db killer out:
http://i.imgur.com/6QYc3Rk.jpg

another better view on the holes and the "entry" to the smaller diameter tube:
http://i.imgur.com/cDRFD7j.jpg

it looks pretty black already, i have run about 2000 km on it now.

So... close some of the small holes (i was thinking rivets maybe?), or somehow make the "main entry hole" smaller?

Personally speaking, what I would do (based on the fact I think mine is acceptably quiet) is to replicate this design.

Simply cut a few millimeters off the input end of the tube to get it back to it's full diameter, then tack on two stand-offs about 25mm long and then tack a solid disc to them. I would leave the drilled holes as they are. (Mine has no holes, just a plain old tube, so yours would likely be slightly quieter.)

The solid disc is what makes the difference as it interrupts the wide-spaced pulses (the feature of singles that make them harder to silence than multis) which would otherwise shoot straight through the dB killer.

I wouldn't say yours is any blacker than mine. That looks like a fairly normal/acceptable soot build up. Do you have the AIS connected or disconnected?

Thanks for the answer, i'll have a look into that.

The AIS seems to be blocked in an unconvenionnal way (i didn't do it myself, see my thread here: http://www.xt660.com/showthread.php?t=25535).

Backfiring is not a problem, the *bangs* are rare now (maybe i just got used to them)

The reason I referred to the AIS was more to do with the soot you mentioned, rather than the dB killer issue. When the AIS is blocked there tends to be a little more sooting in the exhaust, partly because unburnt fuel in the system is not being burnt off, but mainly because the act of the "explosion" itself (the pop/bang) effectively blows out and cleans off excess soot from the internals, baffles etc. and, importantly with the stock exhaust, keeps the cat clean, free from soot and the damaging effects of unburnt fuel.

Just fitted my Exan exhaust yesterday and got a bit confused about how to mount it. Looking at the pictures in the first pages in this thread it looks like the exhaust hanger i mounted in front of the mounting point of the pannier frame. The only spot I could find to mount the exhaust hanger was the hole where i suppose the pannier frame should be mounted.

Do you guys know if this is the intended way to fit the exhaust?

The mounting point for the hanger supplied is off the rear pannier rail mounting point. The mounting on my bike on the early photos is different and off an under seat bracket to allow the tool tube fitting.