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dailey driver

  1. Spartan 250 vs 275

    6.4L Performance Parts Discussion
    FINALLY got my spartan ordered today and got the s&b CAI and 5 inch turbo back with 6 inch tip. Wondering if the 275 or 250 are better dailey driver tunes?? ill deffinitly be doing some racing but i want the most mpg i can get and smootheest drive. and i dont wanna hurt anything so is the 275 a...
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