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      04-03-2013, 04:45 PM   #20
JDM3
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Drives: 2009 M3 E92
Join Date: Oct 2010
Location: Long Valley, NJ

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Quote:
Originally Posted by chris3g
The injectors for the 625 and the 650 are the same, aren't they? According to the ESS site the 550 has "spec 1" injectors, 585 "spec 2" and the 625/650 "spec 3"

I thought the 650 also used a custom crank pulley though in addition to the blower pulley.
Difference between 625/650 is crank and blower pulley and tune
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