I have curved flanges too on my ERZ HFC's. Not sure if this is an issue or not. Interested on what ERZ has to say about it.
I am hoping that the consistancy with the curves means that they intended to do this.
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2009 370z 6MT Touring w/ Sport Pkg | Invidia Gemini CBE| Stillen G3 CAI | ERZ HFC's |X-Pel Clear Bra | 20% Tint
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