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Discussion Starter · #6 ·
The tune it is on 87 octane. I will try 91 this Friday.I set my tire size to 36.5" and wow this thing gets up!! I am getting 17.5 mpg on hwy and before i was lucky to get 15 mpg. The take off from a stop is crazy. Punching it from 70 mph to 100mph it puts you back in the seat lol. This is so worth the money.
 

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:smileup: Congrats welcome to the fun side! I got my Cortex about a month ago and have seen about 1.5 mpg better and love the power. I run 87 tune with mds off. My mileage actually went up without mds.
 

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Discussion Starter · #8 ·
Thanks!! How do you turn the MDS off? I can't find that option in mine. I can't find the time trials from 0-60 either
 

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The setting should be under the same list where you adjusted your tire size. Mine has a list of several things and it was titled "MDS Disable" I believe. You click ok the yes to disable.
 

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Discussion Starter · #10 ·
Ok I need gas and was thinking getting 91 octane and try the 91 tune out. So when I do this do I set it back to stock and then upload the 91 tune?
 

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That's what I did because I was unsure myself. I had the 91 tune on for a short time but i noticed the engine would rev higher at cold start up and it annoyed me. It doesnt do it on 87. Keep us posted on your results.
 

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Discussion Starter · #16 ·
Me too, please elaborate.
Ok well sence my truck has 37's I set the tire size so my spedo would be right for one option. I set the tune for 87 octane and im running 89 octane. It takes off faster and I am getting 17.5 mpg which I havnt seen gas milage like this sence it was stock. So ya a tuner is really nice to have.
 

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Good for you..... :p

Like others, been waiting and waiting and waiting for the '11 programmers. *sigh* :eek:ld:
 

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Discussion Starter · #18 ·
I feel for you guys. I had mixed feelings on these tuners. I wanted one but didnt think it would be worth it. Now I know it was worth it!
 

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I have the DSP and felt the power immediately, but when i shut it off the few times i went back to the dealer, that's when you really notice the difference. enjoy!
 

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So what made you go with superchips
 
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