Hmm, I still haven't orderd any of mine so will wait and see what other people say!

Oh dear.....lets hope I can get the 3mm stuff on otherwise it's wasted haha

Got any deliverd yet then?

I keep going to order mine but will be getting 3 meters at a time so want to know if it's 3mm or 4mm!

As well a small few pipes being 7mm!

I've just got mine today. When I first looked at it the hole seemed rather small.

I tried it on one of the outlets on the box on the top of the strut tower and its a snug fit and goes on. Haven't fitted it yet however as I was late home.

Good to hear, going to order some 3mm then. I'm sure it can stretch over and fit even if it should be 4mm.

I was more worried if fitted with a bigger/smaller bore size it would affect the amount of vacuum needed and affect the running if the car.

Played with the digital vernier gauge today, didn't help much to be honest!

Number 1 and 2 vacuum pipes...

1:

Outer pipe diameter = 9mm

Pipe from vacuum outer diam = 5mm

2:

Outer pipe diameter = 9mm

Pipe from vacuum outer diam = 6mm

So from that I would buy 4mm pipe and 5mm pipe, assuming the thickness of the pipe is 1mm.