I would also suggest from experience, aiming to max out power and speed with expensive mods when the bike is new, is not advisable.
The machine has been setup from factory for a particular blend of performance, handling and safety, modifying it without mastering the stock config to me is a waste unless rider is a pro racer doing a race build - not likely in SG streets.
Likewise buying expensive "upgraded" suspension and replacing on day one, upgraded as in how? Spring rates? Adjustability? Ride height? Dial in comfort or response settings? Oversteer or understeer feel? If not mastered the factory specs again how to optimize the machine properly?
I would also suggest against putting any unnecessary additives in oil and fuel be it hardware or performance enhancing gimmicks. Fuel saving gadgets never work as advertised, they're mostly scams, Octane booster could solve a problem on a vintage machine with a knock problem but new EFI machines have complex fuel maps to optimize ignition timing. Ditto additives in motor oil that can ruin your motor from not knowing what are the additives doing inside...