well i has removed my intake manifold and thought this would be a good time to order some high quaitly silicone hose to replace the crappy ones that are supplyed by audi but im not sure of the internal diamater that i need, and i was hope you all can help me out

 

take a piece and have it measured then buy a lot

 

i thought of that but there are about 5 different sizes. i looked in my bentaly manual and it didn't say

 

https://www.audiforums.com/m_438847/tm.htm
I was on there but cant remember my password is its dead to me( not that I use it anyway ) but its usefulETKA online but I dont think it gives the sizes just the routing, easy/free to join and remember your password

 

thanks techbod that is sure a helpful tool. I just ordered 4mm,6mm and 8mm it seems to be the univeral normal , i think those sizes will at least take care of the ones that are under the intake manifold