I have a 2004 RAV-4 that never had the muffler or any of the under carriage noise reduction pipes replaced. The car had 146,000 miles with body and engine are in great shape. Noise was load so needed replacement. In addition brakes seemed a bit spongy. I called late on one afternoon, dropped the small SUV off for night key drop. Got a call before 9:00 the next morning with a estimate to replace cat. converter and all the piping, muffler and the brakes were close to needing replacement. Gave the go ahead and vehicle was done by 4:30 PM and road ready for another 146,000 miles. Oh, and done for the price that was quoted.