The middle bolt on all greddy adapters has two threads.
One for the engine to fasten on filter's location and one for the filter itself.
On engine side you have to use the thread of the filter you are currently using (Μ20x1.5 for VE).
For the filter all bolts use 3/4x16UNF
240SX=S13 is using 3/4x16UNF on the engine side and 3/4x16UNF on the filter side.
I highly doubt you'll have any clearance issues.
The standard adapter has been used by locals on B15/N16, B14/N15, B13/N14 and S13
Here's how it looks on B15 chassis