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  1. Performance Mods - Engine - 5.7 Hemi V8
    Hyperpac - Just got mine for my 05 1500 5.7 SLT 4x4. I have about 175k miles on it. Short version of my review: LOVE IT. my truck is stock, 33 in tires. Never liked the ultra soft smooth transmission shift. I did the Regular Gas tune tonight and it was extremely easy. Truck got at least...
  2. Performance Mods - Engine - 5.7 Hemi V8
    IM sick of my hemi. it seems to detune itself, I use a hypertech power programmer, and whether it's stock or tuned, it is badass for a day or two, then it slowly detunes itself, I couldn't even pass someone today. The fact that it runs like a beast when freshly tunes tells me its not a...
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