2010 260 GTX intercooler inlet hose size

[Hongkongstephen]

Hello all,
I just bought a new OEM intercooler but now I have another problem. The original inlet hose is too big. Not by much, maybe 5mm but the hose diameter is definitely too big. Any suggestions?

 

[chimeranzl]

Put a sleeve inside the original hose?

 

[Hongkongstephen]

Yeah ok good idea. Main problem is I have a Chinese mechanic. Speaks no English! Haha