Hello all,

Does anybody know the stock intake inlet diameter size on our S60? For some reason I can find no tape measurer or ruler around the house, so I was hoping somebody might know it off the top of their head. I've tried researching and found anything from 2.75" to 4", does anyone have a definitive answer?

 

Probably depends on the engine...2.4 might be different from the 2.0, 2.5T, T5 and R (whatever the sizes are), and maybe different years too. So 2.75 to 4 is likely right.