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E9X M3 DCT Gear Ratio Tune

E9X M3 DCT Gear Ratio Tune

$325.00 Sale

Gear Ratio: 3.45

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. Requires a K+DCAN cable and windows computer.


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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