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3.5liter

  1. Trying to figure out the best muffler for the job.

    8th Gen Engine Performance
    Now I already know I am going to have someone say why mod a 3.5l but as is right fresh oil and sensors functioning properly I get close to 50 mpg on hwy. Now with that said I am currently working on my exhaust. I have had the resonator deleted and now I'm looking at a new muffler. I have heard...
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