Your opinion on this T4 flange...

...with a round center hole off e-bay. The seller said it was a 3" hole but it's actually a 2.5" hole... I was planning on having 3" exhaust pipe to the turbo... Do you think 3" to a 2.5" reducer into this flange will matter? I have a T76GTS on this setup with a T4 flanges. .96a/r.





