if the 155 mph limiter is real or really absent, as it was on my B6S4 (This determination was made purely in the interest of science, of course.).

I have no intention of attempting a personal LSR, but wondered what top speed a US spec RS4 could attain.

"fictionally" - I got to scarred to do any "further" research.

story my passenger was the one watching the Speedo and screaming "you're over 165 slow the F down"! As I posted in the past we should have an (in theory only) RS4 165+ club. A few seem to have already joined. I would also like to add that after experiencing a cracked rim the family jewels seem to have shrank a tad and any future fictional LSR stories are on hold :-(

242 fps might stretch even my 'fictional' envelope.

Of course, these brakes are sorta good.