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  1. N

    1998 Tahoe tuner suggestions

    4 wheel drive.... 185,000 miles... no idea what the rear end ratio is. Not interested in rewiring the pcm
  2. N

    1998 Tahoe tuner suggestions

    Any recommendations on a ob2 tuner i can get for my stock 5.7L v8. Currently I'm getting approx 13.5 mpg... I'd like to improve that if possible.. Any help greatly appreciated

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