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throttle body spacers

  1. Thottle Body Spacers and Why They Do Not Work

    Mileage and Fuel Economy
    I have had several requests to make this short write-up into a sticky so here it is: Throttle Body spacers sound good in theory but do not work in practice. Assuming the spacer could impart enough spin on the incoming air to bring it to the level of better blending the A/F mixture it would...