stainless power headers are identical to stainless works, same company. the power ones are the bargin brand and have less warranty, that's all. they are still made out of 304 stainless and are the same gauge as the works ones.
This might be it. I thought I had to get different motor mounts. I took them off and put them on the same way. Even with the stock header it seems to close. I bought this car used so hopefully this is it. Going to check it out later when I put on my coilovers. Thanks.