If you're interested I have a set of GTR injectors laying around.
I just finished 3 G37s that I had tuned on E85. I've done both Flex fuel or just map switching between 93 and E85 and honestly the cost difference for Flex fuel is not worth it unless you're boosted.
For NA cars, gains of approx 8-15 whp can be realized but the torque difference in the low end is the best part of it.
Contact me If you have any questions, I'm a tuner for Ecutek.
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Creator of the GTR TT Conversion Kit, NA Record Holder (401WHP)
Ecutek Master Tuner (VQ37, VR30, VR38, B58, S55, S58)
BTWTuning
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