ROANOKE, Va.--(BUSINESS WIRE)--Advance Auto Parts, Inc. (NYSE: AAP), the largest automotive aftermarket parts provider in North America, serving both professional installer and do-it-yourself customers, today announced its financial results for the second quarter ended July 18, 2015. Second quarter comparable cash earnings per diluted share (Comparable Cash EPS) were $2.27, which included a $0.03 unfavorable impact from foreign currency and was an increase of 9.1% versus the second quarter last