Dinan Performance Transmission Chip - Various 1987-1999 BMW's

Sporty acceleration is no longer the sole domain of those who like to shift gears; Dinan Automatic Transmission Software welcomes you to the performance zone. To fully utilize the extra power extracted by Dinan Engine Performance Products the transmission software raises the shift points to a higher RPM for faster acceleration in both the ''Sport'' and ''Economy'' modes, allowing you to carry more road speed in each gear.AVAILABILITY: Please consult the general application guide below to determine if Dinan offers a specific chip for your combination of vehicle, Bosch ECU, and chip number. If you are not sure what your stock ECU and chip number are, consult the Dinan ECU/TCU chip identification guide under tech resources to assist in accurately determining that information so the correct chip can be purchased. HOW TO PURCHASE: To purchase, call the support staff at 1-800-341-5480 with the correct corresponding Dinan part number (see chart below) and they can assist in placing the custom order. Chips are build (burned) to order and not returnable.