2021 MasterCraft XT21THE CUSTOMIZABLE CLASSIC Fit 13 friends in this classic-bowed versatile ride and surround yourself with wow-factor. Fire up the Ilmor 6.0L engine and let it purr. Then make the surf flow behind the boat via the powerful and innovative Gen 2 Surf System. Kick it in high style on the convertible transom seat. A roomy layout and premier performance means the XT21 is a memory-maker no matter how you define fun.