I'm looking to increase maximum engine RPM & HP/"area under the curve"(via tune for 93 vs. OEM 87 octane). The car is a stock 2015 GTPP aside from basic things such as catback CAI. I believe there would be a decent benefit in laptimes at a few of the tracks I run with having another 500-1,000rpm. I've heard the Coyote motors are fairly robust with taking additional RPM, what is the motors weak point (ie: must upgrades?, oil pump ring gear?)? Any recommendations for an off the shelf solution? Or is a custom solution basically the only way to go?