Both the Larson LXi 228 I/O 2008 and the Larson LXi 258 I/O 2012 are modified-V designs, the first built in fibreglass and the second in composite, so the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?
Size is the most obvious dividing line here. The Larson LXi 258 I/O 2012 measures 25,5 feet overall (2012), giving it roughly 3,5 additional feet of deck space compared to the Larson LXi 228 I/O 2008 at 22,0 feet (2008). Weight tells a clearer story for trailering families: the Larson LXi 258 I/O 2012 tips the scales at 4 750 lbs - 1 255 lbs less than the Larson LXi 228 I/O 2008 at 3 495 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.
Both boats share a closely matched power ceiling - 320 hp for the Larson LXi 228 I/O 2008 and 300 hp for the Larson LXi 258 I/O 2012. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Larson LXi 258 I/O 2012 carries 56 gallons versus 35 gallons in the Larson LXi 228 I/O 2008. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.
For family outings this is probably the sharpest distinction between the two. The Larson LXi 258 I/O 2012 is rated for 12 passengers, while the Larson LXi 228 I/O 2008 caps at 10. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Larson LXi 258 I/O 2012 could be the deciding factor.
Bottom line: Choose the Larson LXi 258 I/O 2012 if your priority is putting more people on the water - it handles 12 passengers and at 25,5 ft it has the deck room to back that rating up comfortably. The Larson LXi 228 I/O 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 10 that costs less to run day-to-day.