BMW E39 M5 G1 Supercharger System

The ESS E39 M5 G1 supercharger system delivers unparalleled acceleration and everyday driveability matched with the reliability customers have come to expect from ESS. Countless hours of development and testing have resulted in a supercharger system that produces 570 horsepower and 640NM of torque with the smoothnes and drivability of a stock car. Component quality matches or exceeds BMW OEM specification throughout the kit.

The system is based on the ultra light, high efficiency, internally lubricated G1 supercharger. The redesigned ESS MSS52 engine control software is perfectly calibrated for the supercharged engine providing optimum ignition timing under all conditions, recalibrated EGas for quicker throttle response, recalibrated VANOS control and perfectly optimized fuel delivery supplied by 8 larger Bosch injectors ensures that the engine is operating ideally under all conditions.

The system maintains all OBD-II functions, and it is backed by a comprehensive 2 year, unlimited mileage warranty. The system installs in 8-10 hours using normal hand tools and no irreversible modifications to the car is necessary.

The kit comes with the ESS E-Flash OBD2 cable which allows the end user to upload the supercharger ECU software directly to the car from any PC running Windows 7 or newer. The system also includes full diagnostic and code clearing capability. The stock ECU software will be saved and can easily be restored in the future.


CNC aluminum crank pulley
Fully automatic belt tensioning 
8 high flow Bosch injectors
New ESS ECU software w/removed top speed governor and 7100RPM limit
ESS E-Flash OBD2 interface cable
ESS G1 self contained supercharger unit
CNC machined, black anodized 35mm certal-aluminum main bracket for extreme rigidity
ESS custom casted, teflon coated plastic SC intake system
ESS custom casted lightweight aluminum discharge system with integrated high capacity bypass system
CNC hard anodized support/ABS control unit brackets and hardware
ESS bumper mounted CAI w/K&N high flow air filter
Detailed step-by-step installation instructions, fully illustrated
Heavy Duty drive belt system
Oil breather assembly designed for boost
CNC machined, anodized fan spacer
2 year/unlimited mileage warranty
100% Maintenance free operation
100% Bolt-on installation

Part number: ESS-S62G1
Boost pressure: 7.5 PSI @ 6500RPM
Horsepower: 570 SAE/560 DIN
Torque: 470 lb-ft/640Nm
Installation time : 8-10 hours

Application intended for: E39 M5 from 1998 1999 2000 2001 2002 2003

This kit has been emissions tested by a CARB certified laboratory and found to be within EPA specifications : ESS S62 G1 emissions test report

ESS builds supercharger systems to order; most ship within 2–4 weeks.

Boschma's Speed Shop is an authorized ESS Tuning dealer. Questions about fitment or setup? Call us at 608-481-2789 or email bandbracing@sbcglobal.net.