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S4 Maf Question

Discussion in 'A4/S4 forum(B5 Chassis)' started by nemo2182, Feb 23, 2010.

  1. nemo2182
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    nemo2182 Lord wont u buy me a V10 R8!

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    [Feb 23, 2010]
    I put my S4 into a mate of mine to run VAG test other day and he told me that the MAF wasnt running correctly. Now my question is can I, or should I change the MAF to a RS4 unit??My car is tuned, and Im looking to add more BHP, so would it be benefical to change???Now I know there slighty different and I dont even know if you can run an RS4 unit on a S4, but Im guessing a RS4 allows for higher air flow?

    Nathan
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  3. Blue_Thunder
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    Blue_Thunder Active Member

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    [Feb 23, 2010]
    Not worth it on K03's. You'd also need an RS4 airbox, accordian hose and Y-pipe. Believe you would also need to have the car remapped as the voltage reported to the ECU would be different for the same airflow (as cross section is greater).
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