Check out this guys post and the full thread

http://www.xoutpost.com/1095544-post46.html

It would appear that V8 solved his harsh 2nd gear issue by adding an external cooler

Aux cooling so crital fluids has never been a bad idea in my mind.

Others views may vary

Mike

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Mike
Dallas, TX & Appleton, WI
2003 E53 4.4i Pearl Beige
2003 E46 330Xi Monaco Blue
2007 E90 335Xi Black Sapphire Metallic
2011 F25 X3 28i Black Sapphire Metallic