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mpg reduction

  1. ('09-'13) 2010 - Trying to increase the MPG - PZEV conversion possible?

    Problems, Maintenance, and Warranty
    Hey all, I am trying to get more information regarding the differences between the PZEV, and non-PZEV models for the Non-Turbo 2010 Forester. From the small research here and here it seems that the injectors, catalitic, air filter and the ECM are different. I am trying to increase the overall...
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