I’m picking up my 203 Kia Optima SXL turbo next weekend and adding HKS sparks, injen air intake and a jb4 turn I was wondering what would the best map to use be as well as if using 91 octane would help with HP or it would be useless with the mods I’m adding? I’m thinking map5 but I want the best bang for my buck any info/help?