|   Take your already high performance M3 / M4 to the next level with expert calibrated ESS Performance ECU software.     Power increase of ~50-60hp and 70-80 ft/lbs of torque over otherwise stock M3/4. Power delivery is provided by optimizing turbo boost pressure within the factory turbos efficiency range. This calibration design allows for reliable, consistant perfomance and a very responsive and OEM like driving experience on pump fuel. Note: Prior to sending ECU in for configuration, you must note your name and order # on the ECU. Applications 
 ESS Tuning T-500 S55 Benefits 
 
 If you have any question about this ESS E-Flash Tuner please give our specialists a call at (714) 582-3330 | 
- Mod Category:
- Performance
- Mod Subcategory:
- Tuning
 
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