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Why aren't you wanting a tune? Personally, I wouldn't use a mail order tune for FI other than to get the car to a quality dyno facility.
 

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I have to second jlee's advice. If you're going to spend the bucks on the E-Force, get it dialed in on a dyno. They are much more accurate and can get you the most out of your mods.
 

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With their tune your car will not run right. installed my e-force stage 2 about 1 month ago. I have long tube headers installed also. Car would idle fine but because I don't use the rear O2 sensors it didnt like to run until completely warmed up. I had to make my own custom tune with HP tuners.
 
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