If you have any noises in your exhaust system take your car to Lyon's. My Integra had an annoying buzz at a specific RPM. The dealer said to replace all the heat shields for $800. I took it to another muffler shop and they were a little better. They said it wasn't the heat shields but they couldn't find the source of the buzz. Jim and Chris found the problem was an inner pipe had busted loose. They drilled holes, welded the loose inner pipe and the engine purrs. They charged an hour labor. I saved hundreds.
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