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03-30-2013, 08:10 PM | #23 | |
Second Lieutenant
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Drives: 2011 E93 M3
Join Date: Jan 2012
Location: Annapolis, MD
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The pulleys are good for a least ten. I recently changed all the fluids (trans, diff, engine oil), fresh plugs, and air filter. Fabspeed claims a 15hp gain. I don't have any data to back the up, but it sure was breathing a lot better when I had it installed. |
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03-31-2013, 07:53 PM | #24 | |
Major General
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