No drilling is required; simply bolt on using easy to follow instructions and video. ALL 2008 to 2010 Subaru Impreza models (except STI) including: WRX, RS, and 2.5i. Manufacturer: Rally Armor. ALL 2011 Subaru Impreza 2.5i models.
Product not bad can't complain. 1 out of 4 flaps had a blade cut thru the front side. Pretty deep cut a little mad bought new should be in New condition