I'm hoping somebody can help. I'm looking for some 3.5mm id vacuum hose which is suitable for use on a turbocharged car. Needs to be strong stuff that won't bulge or collapse. I can find 3mm and I can find 4mm, but I specifically need 3.5mm so I don't lose my restrictor pills
I thought maybe some of the folks doing turbo builds might be able to point me in the right direction 
There's tonnes of generic vacuum line on eGay but not sure if I trust it to do the job.Cheers,
Josh