I went with the sears battery. Got it for $144, and my indie mechanic coded it for next to nothing. Lot better than the $650 Rallye BMW quoted, and $835 BMW Manhattan wanted!
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08 E90 M3 Interlagos Blue
99 E36 M3 Cosmos, #2--Sold
99 E36 M3 Cosmos, #1--Sold
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