Ooops... sorry I had to correct my post. He says it feels like the engine is running lean and holding back power. He asked about my aftermarket exhaust and losing back pressure, and I told him that there were owners with stock exhaust with the same issue. I also assured him that the cats are stock. It doesn't make sense because the car runs fine for the first several miles before acting up, so it can't be the exhaust.
As another member suggested, I'm wondering about fuel delivery.
So Thursday with maybe a scan gauge of some sort.
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