Q: How is this different from a cheaper spacer lift kit?

A spacer lift raises the body but leaves geometry and roll control unaddressed. Trailhead Pro uses true Model Y specific coilovers with purpose-built springs and shocks for usable extra stroke, then adds the alignment arms, high-articulation sway bar, and corrected end links to manage the new ride height. If you want a simpler bolt-on raise, our Leveling Lift Kit is the entry point. Stage 2 is the built-out system.