The overall tire diamater is what will count the wheel size has no effect gear ratios. If you were to run 38" tires with a wheel back space of 4.5 inches (you can get by with 5 inch backspace) and a 6 inch lift it will look like mine. I would recommend that you consider carefully your choice of lift kit. Some highly recommended kits require Differential Mounts to be cut for clearance. Mine did not. So if you were to remove the kit later you wont run into another issue. Mine has the Corsa exhaust that you asked about as well. You can see another view
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