No regrets yet. My stock 80 amp alt can't keep up at full tilt... (V = 11.5).
With a 1-1.1 ohm load, and impedance rise to 1.8-2.0 ohms, the amp burped 1125 w (45 V AC @ 25 amps), 3 seconds in... and there was very light distortion. Distortion ramped up soon after this point. This was 5 mins ago outside. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif
They claim 1100 @ 2, and I can verify it, even at low volts.
My test procedures aren't spotless, but I did not use max hold, or any of the common mistakes. Just a Craftsman clamp meter and a separate multimeter, and a Canon digicam to make sure the measurement was at the same time.