[Chris21]

I recently purchased an 05 with this header. It was cut by the previous owner. It’s a very snug fit under the belly pan. Not sure if it’s for a gen 1 or not. It’s a titanium Akrapovic header. However I can’t find any model number.
Thank you for any help you can provide me

 

[Czano]

It's definitely not stock. You'd be better off contacting akrapovic and asking them but chances are they won't be able to recognize it. I have a similar issue with my headers. They are from arrow but they fit a bit awkward. I contacted arrow by mail and was told they are probably from a k5. You might be looking at a similar situation: old akra header from another liter bike or supersport of the same era.

 

[Chris21]

It has akrapovic covers on the springs. It fits, just seems to close to the belly pan an feel it will melt it

 

[Czano]

I know that feel. I did melt my aftermarket abs farings. I had placed a sheet of exhaust heat insulating adhesive meterial ( that one that is made by a layer of glass fiber with foil on top) between the link pipe and the pan and the plastic was touching the insulating foil. If you have fiberglass or carbon fairings it should be fine. I now have fiberglass and its holding fine. I might add that if it has not melt till now it should not melt going foward.

 

[Chris21]

I have abs. It’s already pretty much pressing against the belly pan. If I put any insulation it would probably do nothing.

 

[Czano]

Yea my case showed me that if it's touching the insulation will not do much except make the melting slower. I think you are sh1t out of luck. Provided you installed everything right it's very likely they're headers from another year zx10r or another bike.

 

[Chris21]

Can see how they can be installed wrong. I do know they don’t have a tab to mount them to the frame mount. An unfortunately I can’t weld titanium myself, so I can’t figure out a mount

 

[Czano]

Exactly that: if the link pipe is not held with a mount it will sag causing it to go close to the pan when it otherwise wouldn't. I built an aluminum bracket for mine. I could take a pic if you think this might fix your problem.

 

[Chris21]

Please do. However even when pushing up the end of the header pipe it doesn’t move it that far up. May be enough tho.

 

[Chris21]

Found this on Ebay. I think it is the right fit. Maybe with the mount it will be just enough room not to melt anything. Maybe I should wrap them?

 

[Czano]

My engine is currently in the shop so I can't give a good closeup of the bracket holding the link pipe but here it is.
Made from a 3mm aluminum sheet. You basically cut long rectagle of aluminum and then you bend it by hand around the and drill a couple holes so you can drive a bolt throught it to mount it to the frame mount hole. Takes a lot of fiddling and trial and error to get it just right. As you can see the non rounded parts with the holes (let's call them "ears" for convenience) are bent at a particular angle to accomodate the pipe. This is quite sturdy, no movement or vibration but I would suggest making the bracket an inch or so wider for extra strenght. Also, you have to make sure the ears are far apart more than the thickness of the engine mount so that when you tighten down the bolt throught the bracket the pipe is held very tight.

And this is how it looked on the bike. I still had the abs fairings here that eventually melted.

 

[Czano]

How much did you pay for you cut up exhaust anyways? It might be worth investing into one that actaully fits and it's not chopped up depending on your finances. A wrap could help as long as there is a little bit of clearance but it's not much different that putting insulation on the farings I reckon.

 

[Chris21]

It was on the bike when I got it. The previous owner cut the muffler section off. I know the ti akrapovics areant cheap

Definitely like your mount solution. Gonna do that also

also I think the end pipe was bent up for some reason as it hits the foot pegs before it goes as far up as it can

 

[Czano]

You could always look for just the link pipe but it's extremely unlikely you will find it. It's the first thing to get damaged in a crash, even a low speed low side. People who have a link pipe in good condition usually sell it with the complete exhaust system.

For the handmade bracket I also did take a cork wine bottle cap the same size of the hole in the frame, trimmed it to be flush and drilled a 6mm hole in the middle of the cork cap. Has held up strong after 6k miles and it help reduce the diameter of the frame hole to fit a 6mm bolt.

 

[Chris21]

That’s a good idea. The akrapovic does sit very close to the plastic. Think I’m just gonna see how it goes for a while. I’ve been working on it an haven’t even got the chance to drive it. I already want to sell it now

 

[Carbon Dragon]

You want to make sure that the Primaries & Y-pipes are lined up correctly and that the Y-pipes collectors are on the correct set of Primaries... I crossed them up once and ran into the exact issue your having. The Akrapovic Header doesn't have a collector mounting.

 

[Twistedsocal13]

If you still need a solution, send me your 2 part belly pan, in a large box ,prepay return shipping and add pm me so we can work out a mutually agreeable amount and I will make you a new one piece carbon fiber belly pan, with c bar style rear stay and cross brace. All carbon fiber. I'm out of twill so normal 1*1 carbon but still stiff light and much higher temp tolerance. I can add kevlar to any high heat and wear or impact areas if desired. Turn around would be around 5 to 7 days, mostly cause I don't like rushing shit like this.