Basically my entire new bike that (fingers crossed) will arrive next month. I guess some of the things will actually make me faster but none of it is really useful. Old bike is a Domane SL5. New bike is a Domane SLR7.

Trek OCLV 500 frame ---> OCLV 700 frame
aluminum stem ---> carbon stem
4iiis single-sided power meter ---> Garmin dual-sided SPD
Bontrager Foray shoes ---> Shimano XC7 (in red because they match my bike)
stock paint job ---> custom paint job
stock boat anchor Affinity wheels ---> Aeolus RSL 51 wheels
Shimano 105 ---> Ultegra Di2
stock Arvada comp saddle w/ steel rails (actually pretty comfy) ---> Verse Pro w/ carbon rails

Current additions I REALLY love are the power meter, aero bars, and bike computer. These are things that would enhance any bike I own. And I'd take a cheap bike with these over an expensive bike without them any day of the week.