Thanks Dave...that is what the tuning shop told me too, but then on the websites they all say "easiest horsepower gains" which was tempting. Done I wil stay away then as the STI Up Pipe is good enough ;-)
Thought about equal length headers but then my mate told me that I would lose my Subaru rumble (dak dak noise) so decided not to for now...I wonder is that is true.
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