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  1. Join Date
    Oct 2010
    i have a 1995 toyota gli, automatic, all stock, i plan to put in some new upgrades
    1. put new air filter, drop down with knn head
    2.421 headers
    3.chambered muffler
    ..pipes, resonator, strut bar..

    will this improve my car's fuel effieciency?

  2. Join Date
    Oct 2002
    you can also add this:

    DIY: Fuel Economy Gauge

will this save gas?