[gmd2003]

Originally Posted by TTHURACAN

Car and driver quotes 17.5 in 1 article and 22.5 in the other lol:

22.5psi -> https://www.caranddriver.com/reviews...turbo-s-drive/

17.5psi -> https://www.caranddriver.com/news/a2...rbo-s-details/

What most people don’t know is that the standard 488 rarely hits 15psi of boost, far from the advertised 20+psi

It's 22.5 , journalists are getting awfully sloppy now. They elected to go to a higher boost lower compression set up with bigger turbines which allows much higher top end power while keeping charge temps and cylinder temps down at the expense of some lag .