BenzUnited Parts
JB4 Tuner for 2021+ Mercedes E450, E580, E53 AMG, GLE53 AMG & 2020+ AMG GT43 / GT53
JB4 Tuner for 2021+ Mercedes E450, E580, E53 AMG, GLE53 AMG & 2020+ AMG GT43 / GT53
Regular price
$595.00 USD
Regular price
Sale price
$595.00 USD
Unit price
per
Shipping calculated at checkout.
Couldn't load pickup availability
Unlock hidden performance in your Mercedes-Benz with the JB4 Piggyback Tuner. This advanced system integrates with your factory ECU to deliver up to 50–100HP gains, sharper throttle response, and reduced turbo lag — all while remaining fully removable with no ECU flash required.
✅ Key Advantages:
- Dyno-proven +50–100HP depending on fuel and map
- Completely plug & play — installs in under an hour
- Uses CANbus for real-time tuning and safety monitoring
- No ECU flash — fully removable with no trace
- Fuel economy remains unchanged during daily driving
Performance Features
- 8 selectable maps: 91/93 octane, E85 blend, Race Gas, Valet Mode, Stock
- Boost-by-gear for improved traction and launches
- Reads & deletes fault codes directly from the JB4 app
- Real-time data: boost, AFR, timing, throttle, IATs, fuel trims & more
- Five-year warranty — made in the USA
Vehicle Compatibility
| Model | Year |
|---|---|
| E450 / E580 | 2021+ |
| E53 AMG | 2021+ |
| GLE53 AMG | 2021+ |
| AMG GT43 / GT53 | 2020+ |
Want wireless tuning?
Add the JB4 Mobile Bluetooth Adapter for app control, data logging, and map switching.
Add the JB4 Mobile Bluetooth Adapter for app control, data logging, and map switching.
Experience how your AMG should have come from the factory — faster, smoother, and more responsive.
