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I have been running an M-Factory helical LSD for over 1 year and could not be happier. I purchased a complete prebuilt pumpkin as I did not want any finger pointing if anything went wrong in the future. Best price was "Black Friday" special. Install from an indy ran $400. M- factory communications with Stephen was excellent.
Tuned and running 435WHP and 470 lb/ft at wheels.
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2011 35i BMS High & Low side OCC, Custom tune, CDV delete, Eldor coils, ER Charge Pipe w/Tial BOV, ER Comp. FMIC, K&N drop in,40W LED Halo, LCI side markers, M-Factory LSD, NGK plugs, Racing Dynamics strut brace, Stubby, Windrestrictor
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