I'm running ecutek (bendcalibration tuning) it's been amazing so far. I'm using their fuel filter & flex fuel sensor running full E85.
Worth every penny! My car has never been better. We put down 425whp & 435wtq on E50. This was a conservative tune geared towards track & hot weather driving. So far after some hard canyon runs it seems to be running amazing.
Weather was about 75 degrees on my last run & my IAT never got above 84 degrees so it seems like we're gonna be adding even more power. Those runs were on E50 (7 gallons of E85) & just recently I made the switch to full E85 which I think the car likes even more. She's been at her all time best with the full E85.
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N54 135i 6MT (FBO, JB4 reflash, E30) sold
E90 M3 DCT (FBO, tuned) sold
Current: Performance Edition M2 6MT (FBO, ethanol tuned by Bend Calibration/Ecutek)
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