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Should I buy a tuner??

740 Views 2 Replies 2 Participants Last post by  Djreibert2
I am thinking of purchasing the SCT SF3/X3 tuner from I just have a few questions about the tuner before I pull the trigger on the purchase.

I have a 2000 Mustang GT (5 speed manual) that is my daily driver. I have the normal bolt on modifications (K&N CAI, Flowmaster catback) on my car as of right now. I plan to also purchase other bolt on modifications in the near future, such as an Accufab 70mm throttle body and Steeda underdrive pulleys. My questions to you, the forum are: How much performance will I gain with these few modifications with a custom tune? What should I expect as far as increased gas mileage with the tune? (I do not race my car so I would use the street and/or performance tune). And lastly, can the SF3/X3 tuner do things like read and clear check engine codes, adjust tire revolutions per mile, adjust idle, etc.?

If anyone has similar mods with a tuner your input would be greatly appreciated!!
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it does everything u said and much more well worth having and the performance tunes arent 2 bad either i cant give u exact figures but ive had significant gains with my bolt-ons on my current and previous mustangs (diablosport) sct should be no different
What were the numbers on your mileage increase?
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