New Exhaust Headers. What do I have to change?

[colly]

I got some new exhaust headers as I swapped with another motobricker as he wanted my full system. I got some new polished pipes. Before I fit them, do I absolutely need to change the gaskets? I did a quick search and they are not cheap! Do I have to change the bolts too?

[Scott_]

Are you sure you looked at the correct part #.
I don't know the last 7 of your vin for 100% accuracy, but they should be #11 62 7 662 083(or 11 62 1 464 061 crosses to the other) and unless you have super atrocious shipping to Ireland they are less then $4 U.S. each. (2.10 inc vat from Motobins)
https://motobins.co.uk/bmw-parts.php?model=K%20Series&bikeref=K100

Do you absolutely change them? It's up to you. If you were refitting the same exhaust that seated them I would say probably not, that they would seal again. Since you are fitting a different set of headers, I'd bet that they wouldn't seal correctly and I would recommend changing them.

You can always just put the exhaust on and try it. It may work, it may not, then you will know--

Re the bolts, replacing them is totally up to you. Not really necessary unless you break one.

[colly]

Oh fantastic thank you! Not sure what I was looking at on ebay but it must have been wrong. Appreciate the help. Do you know how I can find out the part numbers of the replacement bolts? Thanks!

[Inge K.]

Do you know how I can find out the part numbers of the replacement bolts?

HERE   ...choose production month in the last frame, or insert your VIN in the frame "Serial number".

[pablooo]

If you are looking for bolts, i've had no problems with this SS set that I purchased on eBay http://www.ebay.com/itm/331624705709?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT