Yep .... mine is in now for the same thing. Original quote was 9.4 hours. Since I also had an oil leak behind the timing chain cover they negotiated a lower hourly charge.

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2008 4.8i // Space Grey / Sand Beige / Sport / 20 inch wheels / Premium / Tech / Prem Auidio / Cold / Rear Climate / Vent Seats / HUD / Sirius / iPod / HD Radio / Aero Kit