I'd like to put a Rock Shox Reverb Stealth on my (Med.) 2013 Stumpjumper Comp.

From what I understand, the factory hole in the aluminum frame is too small for the RS hyd. cable housing, but that this hole can safely be made larger with a dremel tool or drill - is that correct?

Also, will the housing make the sharp turn at the seat tube ok?

Any other tips/advice is appreciated.