LTR6IX-11 6509 is for 2016 mazda cx-9 2.5T according to advanced auto website and numerous others as well! I'll stick with NGK over any brand plug. As it is tried and true many times over!!
Edgar, your Vossen rims are awesome. I actually wanted those precise rims but had to settle for Cavallos, 20" 8.5! Not quite as recessed as the vossen line but they work!