ESS E46 M3 E-Flash ECU Tuning

The ESS E-Flash OBD2 programming system allows the end user to upload the ECU tuning software directly to the car from any PC running Windows XP or newer. The system also includes full diagnostic and code clearing capability. Any future ESS software updates can be received by email and loaded directly to the car. The stock ECU software will be saved and can easily be restored in the future. ESS Normal Aspiration optimized ECU software is a result of 100's of dyno runs and exact calibration of all parameters to allow maximum performance gains with improved driveability/fuel consumption and stock engine longevity. Removed top speed governor is included, and you have the option of stock RPM limit or up to 9000RPM, default setting from ESS is 8200 unless otherwise instructed. Power is increased by 10-15 HP when programmed for premium fuel (91US/96Euro). Throttle response programming is improved over stock. EWS system delete available for S54 integration in other cars. Euro software conversion is available for US spec cars with euro headers installed.   Fitment: BMW E46 M3 2000 - 2006     EMISSIONS WARNING: SVBimmer nor any of its subsidiaries make any representation that the products comply with the air and/or noise emissions laws, or labeling laws, of any jurisdiction. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those laws.   EMISSIONS WARNING / USA: Various U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and systems, especially as those parts and systems modify, remove, or replace original equipment catalysts. Please consult the appropriate laws in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. Neither SVBimmer  nor any of their subsidiaries or the sellers of the parts or systems make any representation that any of their parts or systems comply with any such laws.   EMISSIONS WARNING / California: California laws prohibit the use of any aftermarket exhaust part or system that modifies, removes or replaces original equipment catalysts unless the California Air Resources Board (C.A.R.B.) has issued an Executive Order regarding such part or system or unless the part or system is exempted by being used only on racing vehicles on closed courses. SVBimmer  nor any of their subsidiaries make any representation that any of their parts or systems has received such an Executive Order or that any of their parts or systems conform to the racing vehicles exemption. The purchasers are entirely responsible for informing themselves of applicable California laws and to comply with those laws.