The Driveshaft Shop Level 5 Axle Systems have become a standard in the industry for drag racing excellence. This Axle/Hub System have brought more drivers and company's recognition for being able to stand the test of time with their sturdy quality and brute strength. When you're racing for the win, this system is for you. *Power Capacity* 750 to 900HP PartNumber : dssRA8523X5 Description : Level 5 Axles; Sold as Single Axle; Fits Both Sides; 1 Year Warranty Position : Front Left / Right Power Range : 800HP 2005-2007 Subaru Impreza WRX STI H4.2458cc Drivetrain::Axles 2007 Subaru Impreza WRX STI Limited H4.2458cc Drivetrain::Axles