Hello, anybody can tell me if there is a difference of length between
the bolt. The aim is to change from 17' wheels to 18' ?
They are OEM Porsche wheels.

Thanks.

 

same bolts

 

You should be able to use your factory lug bolts if you switching from 17"s-18"s and aren't using spacers. If your going to use spacers you may want to consider the longer GT3 lug bolts.

There is no difference in bolts from the 17" - 18" wheels.

 

Thanks for your answer.

 

set that came on my car was kinda rusty, and i ordered some silver bolts from a gt2, they exactly the same as stock boxster. gt3 ones are longer if you want to use spacers.