I have a 41’ President with SP225s. We have had it about 4 years. So far we love it. Per Brian at American Diesel the inter coolers are not available anymore but you can pipe around them and in my case end up with 180 hp. I have had really outstanding support from AD. Our boat was in need of a lot of TLC when we bought it but I love working on boats. We have painted the whole boat, replaced 11 portholes, replaced the main electrical panel, added a hardtop to the flybridge, fabricated new enclosures for the flybridge and sundeck and many other projects. We are currently making nes Corian countertops and then new backsplashes. Our boat topped out at 17 knots during the sea trial. I didn’t really want 450 hp when we bought it but we find that every now and then it is nice to have the extra power. Good luck with your purchase.