These are the Level 3 Axles for the 2003-2005 Neon SRT4. The axles feature inner CV's made from a proprietary material, with a spline plug into the differential made from aerospace grade material. The center bars are made from a high grade aircraft quality material and are more torsional than the factory bars and the outer CV is a direct fit to the factory wheel hub and includes ABS rings. Rated to 550HP with a 1-year warranty.