Adrenaline HQ M157 Performance Tune – Stage 1 & Stage 2 | Mercedes AMG 5.5L Bi-Turbo ECU Upgrade

Unlock the full potential of your Mercedes-AMG M157 engine with the Adrenaline HQ M157 Performance Tune, engineered to deliver massive gains in horsepower, torque, and overall driving performance. Designed for the 5.5L Bi-Turbo AMG platform, this ECU calibration transforms your vehicle into a high-performance machine while maintaining OEM-level drivability and reliability.

Built on proven M157 tuning strategies, this performance tune recalibrates key engine parameters including boost pressure, ignition timing, fueling, and throttle mapping to deliver maximum performance gains on 91 octane pump gas.

Performance Gains

Stage 1 (Stock Hardware)

• +170 HP
• +250 TQ
• Optimized for completely stock vehicles

Stage 2 (Race Exhaust Required)

• +190 HP
• +280 TQ

Power gains may vary depending on fuel quality, vehicle condition, and supporting modifications. 

The Adrenaline HQ Mercedes  M157 performance tune reprograms the factory ECU to safely extract additional performance by refining the engine’s operating parameters. By optimizing airflow, fuel delivery, and ignition timing, the engine produces significantly more power while maintaining smooth drivability and reliability.

Expect:

• Faster turbo spool and reduced lag
• Stronger mid-range and top-end pull
• Sharper throttle response
• More aggressive and engaging driving experience

Vehicle Compatibility

Compatible with Mercedes-AMG vehicles equipped with the M157 5.5L Bi-Turbo V8, including:

• E63 AMG / E63 S (W212)
• CLS63 AMG (C218)
• S63 AMG (W221 / W222 / C217)
• G63 AMG (W463)
• SL63 AMG (R231)
• ML63 / GLE63 / GLS63 AMG

Mail-In ECU Service
If you’re not local, you can remove your ECU and ship it to us. We will unlock and flash the performance tune, then ship it back to you.

Typical turnaround time is approximately one week from the date we receive your ECU to facilitate tuning.

Why Choose Adrenaline HQ

At Adrenaline HQ, we focus on delivering real-world performance gains, reliability, and drivability. Our M157 tuning solution is built for enthusiasts who demand more power without compromising the integrity of their engine.

If you have any questions about removal, shipping, or scheduling, our team is happy to assist.

Warranty & Liability Disclaimer

Important Notice:
This performance tune is an aftermarket modification and may affect your vehicle’s factory warranty. Adrenaline HQ is not responsible for any warranty claim denial, engine damage, or dealer-related issues that may arise from the installation or use of this product. By purchasing and installing this tune, the customer assumes all responsibility for vehicle compliance, warranty status, and any potential repairs or service concerns.