The sleek, sporty look combined with the ability to jet away at top speeds from a complete stop make the Mustang Cobra a coveted car. If you do own one, you know that you need to keep the Cobra IRS in tip-top shape to ensure that you get the speed you desire. The IRS, or independent rear suspension, provides a smooth ride while ensuring that you can handle the curves that you may encounter while driving on the road. However, owners and expert argue that you must make upgrades to the IRS in order to make it perform at its best. Because you can easily shop a large inventory on eBay, it makes it easy to find parts and accessories for specific model years to make those upgrades, such as the 03 Cobra IRS. When it comes to making sure your Cobra IRS is functioning properly, you need to make sure that you have the right parts. After all, the exhilarating ride in a Cobra only comes when your independent rear suspension is working appropriately.Shop the large inventory of car and truck parts and other car and truck differentials and parts!