I'm having the exact same issue. Same location, same sound, same speeds. To me it appears to be coming from the area between the engine and firewall rather than the front of the engine. It's kinda like a slight (metal?) rubbing noise.
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08 G35 5AT Sedan | Stillen CBE | Invidia HFC | Injen CAI | Uprev Tune | Akebono BBK | Tanabe Coilovers | Hotchkis Sway Bars | GTSpec FSB | Black Headlights & Grille | Volk GT-F Wheels | Hankook V12 Evo Tires
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