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Is only having a new tune worth it?

Discussion in '2nd Generation' started by coild, Apr 11, 2021.

  1. coild

    coild Boss 351 to SVT Cobra Established Member

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    Hi guys!
    Just wondering if it is possible to have just a better & hotter tune installed without having the crank pulley changed for more boost. Is it worth it? Any idea what the HP/TQ increase would be? 2004, bone stock, 90,000 miles.
     
  2. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member Single Barrel Sirs

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    I guess it depends on how good your current tune is. If you don't change any bolt-ons, I would not expect a big enough power increase with a new tune to make it pay off. What size upper pulley do you have now?
     
  3. DSG2003Mach1

    DSG2003Mach1 Premium Member Premium Member Established Member Single Barrel Sirs

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    If no tune at all and you tune it, it would probably be a decent increase and the trans tuning is always a big plus imho.

    if it has a tune on it, unless it's crap a retune on the same fuel would likely net very little
     
  4. coild

    coild Boss 351 to SVT Cobra Established Member

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    Truck is bone stock.
     
  5. CobraBob

    CobraBob Authorized Vendor Premium Member Established Member Single Barrel Sirs

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    Then most-definitely a tune alone is worth it! You will notice an increase in performance, but is there a reason you might not want to also go with a smaller upper pulley? You're missing out a lot if you keep the stock upper. Example, my '03 Cobra made 385/370 with nothing but a catback and intake. I went with a 2.90 upper, tune and 4-piece idler set and it jumped to 459/480. I still remember the first drive after the install. OMG! HUGE difference. So much so that I didn't want to park it. So, you really should go with a smaller upper with the tune.
     

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