Which sp are these headers from??

Jack888

As tittle, Which sp are these headers from?? Sp5??

dudlington

Jack

Any part numbers on the parts ?.

Jack888

dudlington wroteJack Any part numbers on the parts ?.

Hi, No They've been all semi polished and cant see part numbers, The down pipes are 45mm and exits from collector 50mm

dudlington

Jack

SP3 ?. The rear cylinder pipe and carbon cover look the same as a set I have. I will check tomorrow.

Jack888

dudlington wroteJack SP3 ?. The rear cylinder pipe and carbon cover look the same as a set I have. I will check tomorrow.

Thanks mate

dudlington

Jack

I think you have these. From these numbers you can find out what you have.

The sizes match the sizes you mentioned.

Mr.R

I'm 99% sure that all the 851/888SP's had the same header system.
It was the link pipes to the cans/silncers that differed, the SP2's and earlier having lower level cans

Steve R

Jack888

Perfect lads, They looks the same so the sp's use the same ones, Just need to get them fitted now, Must decide whether to weld new stubs on my strada cans or buy a new set.

Thanks

dudlington

Jack

Before you weld anything on make sure you can get the correct OD of the tube and the correct wall thickness. When I modified my cans I could only get within 0.5mm of tube size but the wall thickness was thicker. It was then harder to fit them in the headers. Also the 0.5mm difference can be seen with a good eye and took a lot of work to blend in. The second set I did I left deliberately a weld where I welded on the extra piece so that you cannot see the differences. Ducati clearly had a special size made up that is almost impossible for ordinary people to buy in small quantities.

Jack888

dudlington wroteJack Before you weld anything on make sure you can get the correct OD of the tube and the correct wall thickness. When I modified my cans I could only get within 0.5mm of tube size but the wall thickness was thicker. It was then harder to fit them in the headers. Also the 0.5mm difference can be seen with a good eye and took a lot of work to blend in. The second set I did I left deliberately a weld where I welded on the extra piece so that you cannot see the differences. Ducati clearly had a special size made up that is almost impossible for ordinary people to buy in small quantities.

Hi mate thanks for the advice,
I measured it all up a few weeks ago and got the exact size needed on ebay, If I mind correct it was 52mm OD with a wall thickness of 1.2mm( think the inner size on headers that the pipe has to go over is 49.5mm and the new stub is 49.6mm ID so ive been fairly lucky), I tried it into the headers and it goes all the way home, Its a little tight to slide in and out easy so before I go to weld it im going to stick the 2 stubs in the lathe and give it a wee sandpaper just so when welded to silencers I have no issues fitting them,

Like you say I will defo leave the weld alone, Like you said if I buff it up the silencer and stub will look odd,

Cheers Jack

dudlington

Jack

Having a small part in your hand to slide over is not the same as trying to get the larger silencers back on. You need to first tack them on and then weld , grind nicely and then do a cosmetic weld afterwards. A good welder can get better than the factory doing it this way. With 52mm you have no room for error and will struggle when you come to put them back on. Once it picks up the problem only gets worse. Even when you weld on the bike , things contract when cooling and when you take off the silencers they never go back on exactly the same. Good luck , I hope it works for you , mine took a lot of fiddling but are on.