Vacuum Pipe Size?

[DJ_Troopa]

Afternoooooooooooon!

I'm looking for the correct size for the vacuum piping in the engine bay. Going to do the N249 bypass and also change couple hoses here and there. Anyone know the size i need please? What mm is it?

Thanks!

Jay

 

[DaveA3]

im using 14mm atm if ur on about the vacuum from the inlet.

 

[DJ_Troopa]

14mm? That's a bit big isn't it lol.

It's either 3mm or 4mm but i don't know. It should be the same size as the small dv pipe.

Anyone know?

Cheers.

 

[Y83OLK]

I got a metre of 3/4 and 5mm when i did mine.