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  1. K

    Ordering a 2013 GT

    First run stock: 444.88 hp and 376.17 tq Second run with just tune: 548.48 and 484.91 tq. Third Run with tune and 79mm pulley: 577.84 and 518.19 tq. That's directly off the guys thread. He was on a dyno jet and tunes were from vmp
  2. K

    Ordering a 2013 GT

    Yeah they do, but how? I have no clue. Probably Able to get into the history im guessing.
  3. K

    Ordering a 2013 GT

    The other forum I'm part of all the 11+ guys who have roush are getting roughly 460whp. Tunes alone from jdm and vmp have shown 75-100whp increase. I can find the threads if you would like.
  4. K

    sparkplug change

    Stock motor or forced? I have a supercharger and I have to change them out every 30,000. If you don't have forced induction then I believe the service calls out for every 90,000 Oh yeah I think auto light ht1 are recomended for your car also. Could be Wong
  5. K

    Unhappy with my new Roushcharger performance...help !!

    Call me an idiot but is this a tvs system? As of right now I'd including everyone else would recomended getting it to a dyno ASAP! I know roush tunes run rich, but shouldnt be like you lost power.

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