After 8 years and 125K miles in my 00 S4, I recently upgraded to an 05 Dolphin Gray B6 S4. I bought a set of 19 inch ADR M-Classic wheels and I need to get new wheel bolts. I'm on travel and haven't seen the wheels yet, but I assume that I will need conical bolts. Should I stick with the stock 27mm length bolt? I'm not planning on wheels spacers at this point but that could change.