As above really guys need to know the size of the boost pipe with the restrictar pill in it and the 1`s that run to inlet turbo etc....just want to replace these with some fancy red 1`s from boost junkies

 

Standard Subaru boost pipe is 4mm bore hardwall tubing. A lot of the "fancy" coloured stuff sold by aftermarket suppliers is relatively soft single ply silicone vacuum pipe and can balloon under pressure - to the point of causing boost control issues. As such, if you're going to replace the OE pipework, make sure you keep it handy to refit in case the stuff you buy turns out to be unsuitable.

 

[/U] I][/B] thanks mate and what is the inturnal diamiterthis was ment to mean outside diameter oooooops.
but thanks-............. i ve just found some that has the 4mm i.d with a 8mm o.d with a 3mm wall so this stuff sould be fine for the job. the old pipe is 13yrs old now and has gone brittle and cracked in places so it needs doing anyway

 

It's a total stab in the dark John, but i'd say, oooooo, 4mm

Never mind eh

 

Hmmm. 4mm bore, 8mm OD, 3mm wall thickness. Something there doesn't quite add up.

 

lol

 

It makes perfect sense when you live in Kings Lynn

 

lol #2 ^^^

 

corr you cheeky bugger that was abit harsh

 

that was completly right after a good few bottles of magners ,that made perfect sense to me lol. but NO it should read "4mm bore, 8mm o.d and 2mm wall thickness" OK this is the stuff i ordered last night, well what i thought i ordered anyway lol
http://cgi.ebay.co.uk/RED-VACUUM-HOS...-/360302071959

 

Couldn't resist it John

Get some Magner down ya neck

 

That looks like the thin stuff I've removed from a couple of cars that were having mysterious boost fluctuation issues.