D2 PRO Lowering Springs 2003-2007 Accord 2&rdquo;F/2&rdquo;R D2 PRO lowering springs optimize and improving handling characteristics and offer a reduction in ride height while maintaining exceptional ride quality through a progressive rate spring. All of our springs come with a lifetime warranty and are manufactured of 55 chrome silicon steel in an ISO 9001 and TUV approved facility. Includes lifetime unlimited mileage warranty