No modifications to the parts are necessary. They are ready to install out of the box. GUARANTEED ONLY to fit vehicles in the Description. Guaranteed to perform better or equal to the original parts Ceramic pads are quieter and last longer than metallic pads. Fits: Lexus HS250h 2010 - 2012 - ALL MODELS Pontiac Vibe 2009 - 2010 - 1. 8L 2WD MODELS ONLY Scion XB 2008 - 2015 - ALL MODELS Scion XD 2008 - 2013 - ALL MODELS Toyota Corolla 2009 - 2016 - ALL MODELS Toyota Matrix 2009 - 2013 - 1. 8L MODELS ONLY Toyota Prius V 2012 - 2016 - ALL MODELS Toyota Rav4 2006 - 2008 - 2. 4L Models WITHOUT 3rd Row Seat ONLY Toyota Rav4 2009 - 2012 - 2. 5L Models WITHOUT 3rd Row Seat ONLY Toyota Rav4 2013 - 2016 - Models With 275mm (10.
