E39 528i Shark Injector Performance Software
Performance software is a must-have upgrade on your BMW and you won't find an easier and better software solution than the Shark Injector. Developed by BMW tuning expert Jim Conforti, this device plugs into the car's diagnostic port and flashes new performance files into your car's engine computer (ECU). There's no removal of the ECU and shipping, no cables, no laptop required - only a battery charger! Installation takes just a few minutes and your engine will perform like never before!
The performance software was developed on the dyno to create maximum power and torque using premium 91+ octane fuel while maintaining BMW reliability and smoothness. The software makes changes to the ECU's maps and algorithms for fuel injection, ignition timing, VANOS and camshaft movement, and transitional fueling. We modify the maps for part throttle and full throttle so you get better response and more torque at all RPM. We also raise the rev limit to 7,000 and remove the top speed limiter. By fine tuning these maps we've been able to improve the M52/M52TU engine beyond what BMW did by making more power and torque and a smoother-running engine.
The Shark Injector plugs into the diagnostic port inside the E39 cabin. With the battery charger supplying power, press the Upgrade button and within minutes the ECU is reflashed with the new performance tune. No other software product on the market comes close to how easy it is to install. You can use the Restore button to re-install the stock BMW software at any time. Detailed instructions are included. Other tuners require you to remove the ECU and ship it to them or use a laptop to read and write a new file. The Shark Injector is ready to install right out of the box! A planned future upgrade will allow you to use the USB port to load different performance files.
1997-1998 528i (M52 engine) Performance Software Peak Gains
HP Gain + 15 @ 6400 RPM Torque Gain + 9 @ 4500 RPM New Rev Limit 7000 RPM
1999-2000 528i (M52tu engine) Performance Software Peak Gains
HP Gain + 15 @ 6200 RPM Torque Gain + 12 @ 3500 RPM New Rev Limit 7000 RPM
M52tu engine dyno chart -
E39 528i, E46 328i/ci, Z3 2.8
Shark Injector Installation Instructions(click to expand) Shark Injector installation instructions
A capable battery charger is required for the installation. The charger provides backup power supply to the regular car battery during installation. It must be capable of holding a continuous 10amp charge for the full installation (15-20 minutes).
The minimum octane fuel for this software is 91.
Shark Injector FAQ(click to expand) Shark Injector FAQ
This item fits the following BMWs:
1997-2000 E39 BMW 528i
Please ensure your correct model is selected
Does NOT fit your Change Vehicle
Fits your Change Vehicle
This product was last offered at the strikethrough price on
05-03-2026
Lifetime Replacement Program! Read more here
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Lifetime Replacement Program! Read more here
This product was last offered at the strikethrough price on
05-03-2026
Lifetime Replacement Program! Read more here
This product was last offered at the strikethrough price on
05-03-2026
Product Details
Install Note: We no longer offer a 10 amp battery charger for sale. It is highly recommended when uploading this tune to connect a 10amp charging supply set to manual charging mode for safe installation. Failing to do so could result in permanent damage to the vehicle DME.
- Unlock torque and horsepower
- Smoother engine with less hesitation
- Improved throttle response
- Rev limit increased to 7000
- Top speed limiter removed
- Installs in minutes!
Performance software is a must-have upgrade on your BMW and you won't find an easier and better software solution than the Shark Injector. Developed by BMW tuning expert Jim Conforti, this device plugs into the car's diagnostic port and flashes new performance files into your car's engine computer (ECU). There's no removal of the ECU and shipping, no cables, no laptop required - only a battery charger! Installation takes just a few minutes and your engine will perform like never before!
The performance software was developed on the dyno to create maximum power and torque using premium 91+ octane fuel while maintaining BMW reliability and smoothness. The software makes changes to the ECU's maps and algorithms for fuel injection, ignition timing, VANOS and camshaft movement, and transitional fueling. We modify the maps for part throttle and full throttle so you get better response and more torque at all RPM. We also raise the rev limit to 7,000 and remove the top speed limiter. By fine tuning these maps we've been able to improve the M52/M52TU engine beyond what BMW did by making more power and torque and a smoother-running engine.
The Shark Injector plugs into the diagnostic port inside the E39 cabin. With the battery charger supplying power, press the Upgrade button and within minutes the ECU is reflashed with the new performance tune. No other software product on the market comes close to how easy it is to install. You can use the Restore button to re-install the stock BMW software at any time. Detailed instructions are included. Other tuners require you to remove the ECU and ship it to them or use a laptop to read and write a new file. The Shark Injector is ready to install right out of the box! A planned future upgrade will allow you to use the USB port to load different performance files.
1997-1998 528i (M52 engine) Performance Software Peak Gains
HP Gain+ 15 @ 6400 RPM
Torque Gain+ 9 @ 4500 RPM
New Rev Limit7000 RPM
1999-2000 528i (M52tu engine) Performance Software Peak Gains
HP Gain+ 15 @ 6200 RPM
Torque Gain+ 12 @ 3500 RPM
New Rev Limit7000 RPM
M52tu engine dyno chart -
E39 528i, E46 328i/ci, Z3 2.8
Shark Injector Installation Instructions
(click to expand)
Shark Injector installation instructions
A capable battery charger is required for the installation. The charger provides backup power supply to the regular car battery during installation. It must be capable of holding a continuous 10amp charge for the full installation (15-20 minutes).
The minimum octane fuel for this software is 91.
Shark Injector FAQ
(click to expand)
This item fits the following BMWs:
1997-2000 E39 BMW 528i
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
Prop 65 Warning
- TMS3907
