Steeda's rear roll steer kit helps eliminate rear roll steer by correcting the bump steer geometry in the rear of IRS Cobra Mustangs. The design of the rear IRS (independent rear) suspension on '99-'04 Cobras is great for ride quality, but introduces bump steer characteristics like you see in the front suspension. The toe changes from bump steer produce unwanted rear toe changes resulting in unwanted steering inputs from the rear suspension. This produces adverse handling characteristics. This kit from Steeda allows you to fine tune rear bump steer geometry to improve steering response and handling balance. Fits Cobra with IRS ONLY Fits Model Year: 1999, 2000, 2001, 2003, 2004 555-8107$167.95 www.realspeedauto.com Ph.631-563-7325 All parts listed are for the Ford Mustang unless otherwise noted. Copyright 2018 Realspeed Automotive Inc. All rights reserved.