Replaced the mufflers, isolators, resonator and intermediate pipe on the Impala 02. All parts fit perfectly, muffler was silent for about a year. A year and a half later, the muffler rusted and the intermediate pipe in front of the muffler broke, now everything has to be replaced again. And good luck with the warranty if you installed the parts yourself. Also, according to Walker's website, defective parts must be returned to him. Don't buy this unless you plan to replace it again in a few years. I'm not sure how "stainless steel" can rust so quickly.