Fitting a new Creptus 2 into 1 exhaust.
 

I bought a Creptus 2 into 1 exhaust system this winter and yesterday I started to mount it on the bike.

The weight difference is HUGE.. I use a kitchen weight scale that has an upper limit of 5 kg. Even one of the original silencers is too much so I can not weigh them.

The Creptus silencer weighs in at 2.490 kg and the three pipes weigh around 500-800 gr each.

When ordering I could select what type of material and finish I wanted. I went with mat stainless steel as material, oval shape with a conical end cap.

Here are some detail pictures of the pipes.

http://i58.tinypic.com/vno5xy.jpg
Picture of the collector.

http://i61.tinypic.com/2nbzh55.jpg
Picture of other side collector.

http://i61.tinypic.com/2vaip7b.jpg
Exhaust flange that mounts to the head.

http://i59.tinypic.com/10wnmvc.jpg
Side view flange.

http://i62.tinypic.com/2cdwpbl.jpg
New original gaskets (Not included with exhaust..)

http://i59.tinypic.com/b8v29k.jpg
Front pipes mounted, Good fit and no need to bend or grind anything. They are not yet fully tighten..

http://i60.tinypic.com/vpkpld.jpg
Some mounting paste added to avoid leaks.

http://i59.tinypic.com/359fxba.jpg
Collector in place.. with springs As you can see, the brake reservoir is moved using the included bracket. The tube is a little short so that has to be changed to a longer one so that the reservoir can be more upright.

http://i60.tinypic.com/10hn76f.jpg
There is two clamps for the silencer but I will only use one since it is enough. So one is saved as a spare..

http://i62.tinypic.com/2qko3g9.jpg
Detail image of the end cap..

http://i61.tinypic.com/2q8t73l.jpg
Inside silencer.. As you can see it is straight with no chambers..

http://i62.tinypic.com/2vki6c7.jpg
Back of silencer.

http://i58.tinypic.com/i2ixok.jpg
Bad picture of the logo..

http://i58.tinypic.com/2639g6v.jpg
Since the silencer is a tight fit to the frame I used some washers and a spacer to get it enough far from the frame to get clearance from the wheel.

http://i57.tinypic.com/24wcxts.jpg
As you can see the spacers and washers got it out from the wheel.

http://i57.tinypic.com/10mk3o5.jpg
Read view.

http://i59.tinypic.com/15oi1aw.jpg
Exhaust in place..

With the silencer there were two optional Decibel killers.

http://i60.tinypic.com/ogme6t.jpg
I am using the "open one" as it is a good compromise...

I have only test started the bike as I am also doing some other work, the sound is good and has a deep tone.

What I think is one of the best parts of this exhaust is the price to quality.
I paid 290 euro including shipping to Sweden! I guess the price has gone up the last two months but it is still a good buy.

Excellent write up :clap:

Looks good (a lot better than the MM system IMHO), looks decent quality, saves a huge lump of weight over stock and other twin pipe systems, and at 290euro, it was an absolute bargain too!

creptus 2 into 1
 

Hi that exhaust looks awesome. Can you tell me what diameter and length you chose for the silencer? What made you choose springs over clamps? I have emailed them for a quote. Thanks Alastair

Have a look at the bracket that MM supply you will need to get the rear brake pipe further away than it is in the picture.

Bodysnatcher: it is the oval silencer in mat stainless steel with a conical end cap. I had no option to select the diameter or length. It was predefined. But if you have specific demands I guess they will help. It is handmade.

Waynovetten: yes the bracket for the reservoir is a tight fit and leaves the brake hose to close to the heat from the exhaust pipe. This could also heat up the brake fluid and cause brake failure. I will move the resovoir and reroute the hose further away.

For info: The silencer is 450mm long excluding the endcaps. The diameter is oval but it is around 100mm wide in the narrow section (width).

Looks good, how is the heat from the header without a heat shield?

I have not tested the bike yet, waiting for the snow to melt here in Sweden..

But from what I remember from my KTM 640 that had a similar exhaust in the same location it was never a problem.

No worries look forward to your feedback.

I changed the position of the brake resovoir and put it at same location as the metal mule, using a spacer.


http://i59.tinypic.com/2468m8n.jpg

I will soon post pictures of the finished bike. But I need to clean it first..

2into1 exhaust
 

Finally got a reply from this creptus.315 Euros shipped. What I want to know is what is the advantages of spring fixings over clamps. Is there any. I like the idea and simplicity of springs but which should I order.

I don't know what the difference is but I think that springs are more "flexible". For example if you would get a dent or a small hit on the silencer, the springs will flex the system instead of breaking it.
Regarding the possibility of leaks I think clamps are better or easier to get leak free?

Hi again have you had a chance to run the bike yet? How loud is the exhaust with a few thousand rev's on. Going to try and order mine this weekend. Polished or mat that is the next question. Thanks Alastair

I have now used the exhaust for a period of time.

I would say that from the beginning I thought that the exhaust was loud but now I think that it is perfect. I am using the less restrictive baffle and that is a good compromise.

One thing that I think needs to be fixed is the end pipe. The exhaust fumes exits almost straight up and that causes the fumes to stick to the clothes, I guess it has to do with the turbulence behind the bike??
If I have a backpack (which I almost always have) the backpack smells of exhaust afterwards.

If the decibel killer would have a tip pointing down I think the problem would disappear? I am going to try welding a small bent tube to the decibel killer insert and see if that helps.

But it looks and sounds very good, and the price is a killer!

Greetings from Estonia ! I'm also interested in Creptus 2in1 exhaust, but on pictures i can't see O2 sensor hole, so do i need O2 sensor eliminator ? But price is very good :icon_biggrin: and does it need some fueling fixes or bike runs with originial settings ?

Kullam, you need to specify that you have a lambda sensor on your model. Mine does not have so no need for it.
It is always recomended to adjust the fueling after any engine modification.

Kurbens, thank you for your quick reply and i'l keep that fueling thing in mind.

are these uk road legal?

I do not think so, they have no stamps about regulations on them.

Hi Kurbens do you still have this bike and is the exhaust still on it if so how has it held up please

That looks pretty similar to the standard MZ Baghira header pipes, I never had any heat issues with that.

Al.