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I'm trying to replace my vacuum lines. Some say I need to order 5mm, 6mm, 8mm and 10mm. Can anyone please confirm the exact size I need, before placing an order. Thanks.
 

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Is there a recommanded OD size? (based on 5 mm ID)
 

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anything from 4mm to 5mm is just fine.
 

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anything from 4mm to 5mm is just fine.
I think you're talking about ID... I'm talking about Outside Diameter... ;)
I already have 5 mm ID hose (uninstalled yet) but the OD is very smaller than OEM hoses. I just want to be sure I bought the right thing!
 

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Measurement done:
OEM Green and yellow hoses= 10 mm OD ; Red hose= 11 mm OD

My silicone hose= 9 mm OD (w/ 5 mm ID)

Will this silicone hose be strong enough?
 

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well, make math, lol, 3 wall, 4mm, 3 wall, its about 10 mm OD. It doesnt matter if you have 10mm or 11mm, bigger is better cause it will not expand under boost. thats why a lot of people try to get 3 thikness wall.
 

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I think I wasn't clear...

The silicone hose I have is thinner than OEM!

OEM : 3 wall, 4mm, 3 wall = 10 mm
Silicone: 2 wall, 5 mm, 2 wall = 9 mm
 

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i recommend you to get at least 2.5mm wall, but remember, silicone is better than normal oem rubber lines.
 
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