Cool...the bassani is 2.25..the y pipe is 2.5..It still does mate together but your going to have a diameter difference betweent the y and bassani..so it really would not be "optimized Flow" I know it would be hard but I would cut both flanges out.(sho/Bassani) and have an exhaust shop weld a reduction sleave between the two to get optimum flow.. laugh

Eric

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