does anybody know? i need to make a hole in the inner wing for the boost hose im only running a t3 at the moment but i plan to upgrade to a t34

 

63 mate

 

It's 68 mm:

 

I'm not so sure now

Split the difference = 66mm (+/- 2mm)

 

but thats inside diameter and he would need to make the hole for the outside diameter

 

Actually, the size I quoted is for the air filter to turbo hose, and so it's not a "boost" hose as such

Retro Al is that the hose you mean?

Technically, the boost hoses are the turbo to intercooler and intercooler to throtle body hoses

 

like Gareth said, you will need the outer size of the hose so it will fit through the inner wing.

probably rub aswell so will need protecting.

 

yeah its the hose from turbo to airfilter

 

Hold on and I will pop down to the garage and measure one of the Roose kits ive got in stock.

Edited:
Bit hard to get an exact measurement as the hoses flex a bit but the outerdiameter is around 79-80mm for a Roose escos filter-turbo hose.