Hi thanks for reading this, any help appreciated. I have advertsied a 748/916/996 intermediate pipe on Ebay, I bought and believed the pipe to be 50mm to 50mm but now not sure.

http://cgi.ebay.co.uk/ws/eBayISAPI.d...MESE%3AIT&rd=1

I found my original 50mm to 50mm so never fitted this, the dimensions are:

'Hi I believed it to be a 50mm to 50mm but now I am not sure maybe you can advise, the inlet pipes are OD @ 47.8mm ID @ 45mm and outlet/upper pipes are OD @ 50mm and ID @ 47mm. Cheers'

Is it a 45mm to 50mm or a 50mm to 50mm I can never remember whether the pipes fit internal or external. Hope that makes sense and thanks again in advance for any help.