My newly purchased used Q70 Infiniti had a severe road tracking issue. I learned that this issue was common when the vehicle is equipped with the 20 inch wheels. The issue was so bad on this Infiniti certified vehicle, I convinced myself I needed to install camber adjustment arms to fix the issue. Chet's suggested a simple alignment just to better understand the problem. They could have easily sold me on replacement camber parts and installation. They didn't. The results of their alignment procedure showed the car aligned nicely. The driving improved tremendously but still at no fault of Chet's, still tracked due to the low quality OME sport tires. I bought a set of 19 inch rims and a set of Michelin touring tires and returned to Chet's to have them installed. They performed a road force test and discovered two of the tires were marginal (15 lbs and 24 lbs). I reported this to Tire Rack and they are now shipping two new tires. Just can't say enough about the Chet's honesty and having the equipment to identify a manufacturing defect. Professional from start to finish. Thanks Dan