Hals was fantastic - I smelled exhaust in the cabin of my car when I was stopped at a light only and not while driving. The engine was abit louder as I thought I had a muffler issue since I had ran over a truck tire tread on the freeway. It turned out to be my oil cap had come off and I had oil spitting out on my engine creating a burning smell in my car. Hals was honest and did not gouge me in repairing it. I will take it back to them when needed. Thanks
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