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Thread: Is Perf Chip for M30 735 is the same for M30 730i?

  1. #1

    Default Is Perf Chip for M30 735 is the same for M30 730i?

    Hi,
    Is the ECU the same for M30 engine 3.5L or 3.0L? Ie can i use the "performaance" chip meant for 3.5L into 3.0L?

    thanks in advance,
    rahman
    Rahman in Kuala Lumpur,
    1988 520i M20B20
    1988 730i M30B30
    1982 323/6 M20B23
    1980 316
    1984 GPZ550

  2. #2
    Join Date
    May 2004
    Location
    Japan
    Posts
    9,249

    Default

    A serious chip producer/tuner would always ask you for the Bosch number of the MOTRONIC and he will deliver a chip to for this special MOTRONIC number.
    If someone offers you a chip without asking or specifying for which MOTRONIC it is, stay away.
    And a even more serious tuner will ask you to bring the car to fine tune the chip on the car and make a dyno test to see the performance improvement.

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