If your Subaru Impreza (2008–2014) is due for a CV axle replacement, the A-Premium CV Axle Shaft Assembly is a solid choice. This 100% new premium component is designed to meet or exceed OEM specifications, so you get reliable performance without the dealership price. It fits rear left or right on various Impreza models, including 2008–2010 (except WRX STI), 2011 2.5i/Premium/Outback Sport, and 2012–2014 with the 2.0L engine. Replaces OEM numbers like 28421FG010, 28421FG011, 28421FG040, and 66-7378. Key specs: compressed length of 30.63 inches, 25 splines on the input shaft, 27 on the output, and includes an axle nut (ABS ring not included). CV axles transfer power from your transmission to the wheels, so a quality replacement is crucial for smooth driving. A-Premium backs it with a one-year unlimited-mileage guarantee for added confidence. Easy to install for DIYers or pros. Keep your Impreza running strong!