320i cooling and vacuum hose change-out.

[raininspain]

My 1991 320i cabrio Cooling & Vacuum hoses are getting decidedly second hand looking, and I am planning to swap them out for self coloured silicone items.
Unfortunately some popular auction website listings are very confusing as to whether their components are appropriate to 320 (2 litre) or 325 (2.5 litre) engines.
Can anybody advise whether, in fact, both engines use the same components, or are they unique to each type of engine?
Thanks, in anticipation.

[Cloggy Saint]

Both the same with the exception of the elbow between the AFM and TB.

[raininspain]

Thanks for the info. I assume that the unique item you refer to is the air itake duct boot? I had already noted this and my initial request was more about the coolant/heater hoses. Based on your confirmation I can now proceed to order. Thanks again.