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sct xcal 3. ok so i am going to buy this as soon as i know this...
i have a dual exhaust and a cai.. do i just order the one with preloaded tunes and just run like 91 octane tune, or do i need to have them make me a custom tune because i have an intake and exhaust? Thanks.:bigthumbsup
 

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pre-loaded should be fine, most of the custom tuning is done with your mods+ injectors, MAF, even new cams or intake manifolds.
 

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sct xcal 3. ok so i am going to buy this as soon as i know this...
i have a dual exhaust and a cai.. do i just order the one with preloaded tunes and just run like 91 octane tune, or do i need to have them make me a custom tune because i have an intake and exhaust? Thanks.:bigthumbsup
You will get the best results from a 93 octane tune......
 

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^^ true fact. The higher the octane tune, the more power it will make. Octane itself doesnt make the power, but changing the timing because of the higher octane does make more power. 93 Octane performance tune from Justin at VMPtuning.com is what i have and its absolutely amazing.
 
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