Chevrolet Trailblazer 2006-2009 L6 4.2L. Rotor Style: Drilled & Slotted. - Excellent performance with drilled and slotted rotor design for improved heat dissipation. - This brake kit is designed for specific vehicle models: for 2006-2009 Chevrolet Trailblazer L6 4.2L, fits for 2006-2009 GMC Envoy L6 4.2L, and fits for 2006-2007 Buick Rainier L6 4.2L.