I have a 2001 Tahoe LT 4x4 with a rotted-out Gibson 10 yr old cat-back exhaust system and just purchased a Walker Cat back exhaust kit from Roc auto. Anyone have any exp with Walker parts? The price was right and I hope it works out, just couldn't spare the extra $ now for high dollar kit plus this our winter/bad wether / beach beast used mostly when snows or going to beach hoiuse for the weekend. Still a wonderful trucvk with aprox 186,000 miles on her.