I had 2 pc. wheels that were widened on a lifted truck with 35's. I towed an 8,500 pound toy hauler numerous times along with the bed full of gear and firewood with no problems at all.
I would think if a widened wheel can hold up to weight like that, it would be more than OK on a pro-touring camaro. DSE uses widened 2 pc. wheels for cars they build also.
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Travis
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