Guy's, my buddy is in the process up upgrading his 03 outlaw. What kind of speeds and handling can he expect from this boat with about 600-650hp? I have searched around and haven't found any real world #'s...

Mid 70's. Will handle just fine at those speeds.

My dad has a 25 Outlaw with an M3 Pro Charger. I have seen speeds a bit over 80mph in it. His 25 Outlaw handles the power and speed much better than my 24 Outlaw.

Should be damn close to 80 if its propped right.

My old 2003 25 outlaw ran 70 to 72 on gps with a 496HO.

Thanks for the replies. I was thinking at least 80 with possibly 85. Thanks again.

I agree with low 80's. Gonna need hydraulic steering & K-planes & a new propeller, probably a 30 bravo 1 to start with

I agree with Dock, we have a customer running about 640 HP with a pro-charger at about 4 psi. boat runs right at 75-76 every day. this is a '04 25 O/L

That seems a little slow to me based on the fact many people have stated 69-72 mph gps with 496ho/425hp depending on the usual variables...

25 outlawas with stock 425 hos rarley run 72 on gps

The key word is rarely.