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BMW F3X,F4X - 3.46 ratio , (manual trans), rebuilt open differential:
$700.00
Least expensive method to increase throttle response in models with manual transmissions( type 215LW)F series:
M235i /M240i models, sport auto and manual trans (3.08 stock), approx, 12% increase in acceleration335i / 340i models , manual trans (3.23 stock) approx 7% increase435i / 440i models , manual trans (3.23 stock) approx. 7% increaseThis unit is bolt-in , exactly like stock with no modifications
