Vacuum hoses - diameter?

[kriso]

Anyone know what the internal diameter of the vacuum hoses are on the Ibiza? I know I could measure mine but would probably get it a millimeter out or something and blow up the engine

I feel like getting some Forge tubing and brightening up the engine bay.

 

[Ric 2001]

Did mine with 3mm Forge vac pipe. But when I got to the one way valve near the N249 I had to change to 5mm.

Therefore I'd say do 4 or 5mm everywhere.

 

[ForgeMotorsport]

3 - 4 mm will be fine

 

[kriso]

Thanks, I will proabbly go for 4mm then.