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Thread: E38 Performance upgrades

  1. #1
    Join Date
    Mar 2019
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    Greensboro NC
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    3
    My Cars
    2001 740i

    E38 Performance upgrades

    I have a 2001 740i SWB, and I've heard that there are not many performance upgrades you can do. From my understanding, you can install a trimmed AFE CAI for an E39 540i, get a DUMND tune, install a bigger throttle body (either an N62 throttle body or a dinan throttle body), and install an M60 intake. Could someone direct me to where I can purchase these parts?

  2. #2
    Join Date
    Jan 2005
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    Japan
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    54,654
    My Cars
    11/88 E32 750iL+98 E36M3
    moved to E38 forum
    Shogun tricks and tips for the E32 series are HERE!

  3. #3
    Join Date
    Jan 2011
    Location
    Houston
    Posts
    507
    My Cars
    2001 740il
    Junkyard and DUDMD, the CAI is unnecessary for now. Coming from a turbo back ground I would say don’t make upgrades that have minimal irrelevant gains. Stock system breathes fine, add meth to the system to cool intake temps and see what happens. We can’t even max injectors so I doubt a CAI will ad anything even if its put behind the bumper.

  4. #4
    Join Date
    Apr 2007
    Location
    PA & MI
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    2,222
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    '01 740iL#2,'02 CBR954RR
    "A good scientist is a person with original ideas. A good engineer is a person who makes a design that works with as few original ideas as possible. There are no prima donnas in engineering." - Freeman Dyson

  5. #5
    Join Date
    Mar 2013
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    Sonora, ca
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    706
    My Cars
    2001 740il
    4.6L is another choice

  6. #6
    Join Date
    Aug 2005
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    VA
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    E63AMG/Z31/Tacoma/F31
    Supercharger

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