How fast is a stock Z really?

[Black Performance z]

there's plenty examples of q50s hitting over 550 on stock blocks, even into the 800s..it comes down to fueling and bigger turbos from what I gather...this block has been around since 2017...450 whp is good enough for me as a daily....I ran my q50 too 170k on the engine with a 450 tune...plan on doing the same on the Z.

 

[Katum68]

Getting 436 RWHP on stock Turbos, NISMO exhaust, cold air intake, heat exchanger, clutch and AMS Lower Downpipes w/ GES Cats. I had the AMS downpipes without the Cat and got 437 RWHP but too loud for me. With the cats I lost 1 HP but good sound. Can definitely get out of its own way. Other enhancements but these are the HP add-ons.