In my research, it appears the majority of posters stated 33mm.
Tirerack's computer says 30mm.

I just measured the bolts that I used with my HRE's.
Only 27mm.

So now it's turning into a POLL .
Should I go with 30mm bolts or 33mm

And for those wondering why not use the OEM bolts....I can't.
I need a 14mm , 1.5 cone with a 17mm head.