Guys does anyone know what size hose would go onto our maf housing thing ?

Is it 63 ,65 or 70 mm

If I remmember correct its 63...

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Yeah thats what keeps playing in my head

2.5 inch or 3 is the tt one

Ours is 63mm dude which is 2.5 inch. The S3 /TT225 / LCR is 3 inch.

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So a 63 or 65mm hose goes on it

the size of any hoses you buy are quoted as an internal bore size, so a 63mm hose fits on a 63mm throttle boy/maf/whatever..

The hose should be bigger to fit

 

I thing you should  buy a 70mm hose

70mm is too big, if the maf is 63mm OD, than buy a hose which is 63mm ID

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I purchased a 70mm joiner and a 70mm k&n to go on the end of my cai. Perfect fit.