335is/135is DCT Gear Ratio Tune
$325.00
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DCT Tune to accommodate for shorter final drive ratios. Shorter gears 3.45, 3.62, 3.83 and 4.10 all require shift programming to avoid DCT jerkiness, RPM issues and inconsistent RPMS downshifts. DCT Tune Benefits: Faster and more refined downshifts and upshifts Auto mode more comfortable and less jerky/clunky Revised launch control RPM's
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