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THE 2 TONE FLAMED BULLET
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5,236 Posts
the tunning itself is the same...its the same 87 octane, tow, & performance settings. all the flashpaq & cortex models are internet updateable and the cortex model comes with a 2 year powertrain warranty. the cortex and latest flashpaq are more sleek compacked units and they offer some slight fine tuning over previous tuners...but in general i do not find that they are worth the extra cash.
 

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THE 2 TONE FLAMED BULLET
Joined
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5,236 Posts
alright I know the 3715 is the "old timer" would be worth just getting that one or the 3815 which is internet updateable?? cuz the 3865 is just too expensive!!
personally id go with atleast the 3815 because it is internet updateable and it will also track things such as quarter mile time etc...unless you dont care about any of those features. the 3715 is just the origional max micro tuner which they dont make any more. the 3815 is the older version of the flashpaq which they dont make anymore but is basically just a larger, slightly less fancy version of the new flashpaq. what is your goal with the truck...is it just a truck to you and you are looking for a little extra power and some extra MPGs? if so id just get the 3715
 
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