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Engine and Transmission Conversions

KMS is one of the country's leading BMW conversion specialists. We have performed more, and more complex, conversions than almost any shop around, and we continue to expand the envelope of what is possible. KMS conversions have been featured in Bimmer, European Car, Grassroots Motorsports, and Roundel. If you're looking for something unique you need to contact us, we can help

Popular KMS Transmission Conversions
  • E38 740i/iL & 750i/iL Auto to a 6-Speed Manual Transmission
    Starting at $9800, including new parts


  • E32 740i/iL & 750i/iL Auto to a 6-Speed Manual Transmission
    Starting at $7000, including new parts


  • E31 840i/Ci & 850i/Ci Auto to a 6-Speed Manual Transmission
    Starting at $7000, including new parts


  • E36 M3 5-Speed Manual to 6-Speed Manual Transmission
    Starting at $4800


  • E34 525i Touring Auto to a 5-Speed Manual Transmission
    Starting at $3500, including used/reconditioned parts


  • Earlier BMWs Auto to period Manual Transmission
    As low as $2100, including used/reconditioned parts
Recent KMS Engine Conversions