My clamp is kinda old and doesn't really snug up like it should. What size is the intake air tube onto the Bosch intake manifold? Is there a special type of band clamp (I'm sure there is)

Will something like this do?

 

I could be wrong about this but... .

https://www.roversnorth.com/parts/cn...lamp_70mm_90mm

I think that is it - it's #14 on the diagram here https://www.roversnorth.com/category..._ii_air_intake
which I think is the same size as goes on the throttle body -- but make sure -- give it a check. Don't rely on my awful advice hahaha

(and in the part description it says 70mm-90mm)

 

Thanks for that info and idea to look at RN. The DII seems to indicate a 70-90mm where the P38 (my car) seems to indicate a 80-100mm. My understanding is that the upper intake manifold was the same in both vehicles with Bosch intakes. Maybe not. Or just maybe either will work.