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  1. Join Date
    Oct 2006
    Posts
    352
    #1
    good day

    im just wondering if a smaller diameter exhaust piping will improve gas mileage and torque for a toyota revo 1rze? lets say its 1-3/4 to 1-1/2.. thanks a lot..

  2. Join Date
    Oct 2006
    Posts
    352
    #2
    up up up.. i need your suggestion :please:

  3. Join Date
    Oct 2002
    Posts
    29,354
    #3
    There is a proper size of exhaust pipe diameters to match an engine's displacement. Going too small will just limit your engine's power output.

    But if you still want to go through with it, you might just want to install a restrictor plate instead of changing your pipes. The plate is just a flat metal insert with a hole of the exhaust pipe diameter you want. Just insert this between one of the bolted joints of your exhaust system.

  4. Join Date
    Oct 2006
    Posts
    352
    #4
    thanks for the input sir.. my engine is 1rze 2.0L gas.. In other words, it will just lose power?

  5. Join Date
    Oct 2002
    Posts
    29,354
    #5
    Quote Originally Posted by emongedmund View Post
    thanks for the input sir.. my engine is 1rze 2.0L gas.. In other words, it will just lose power?
    It will lose top end power.

    The engine will just end up working harder to push the exhaust gasses through the smaller piping.

  6. Join Date
    May 2006
    Posts
    3,722
    #6
    Smaller diameter does not equate to lesser fuel consumption or improved fuel economy.

    It's like tying a person by his ankles while he tries to run.

    For me the best way is still to change the way you drive.

    my :twocents:

smaller diameter exhaust piping for revo