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RPM ECU-Upgrade | Mercedes-AMG | SL 55 AMG | M177 | 4.0L V8 BiTurbo | MY2020+

RPM ECU-Upgrade | Mercedes-AMG | SL 55 AMG | M177 | 4.0L V8 BiTurbo | MY2020+

SKU:
54.177.RPM.55
$3,280.00
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Width:
15.00 (in)
Height:
9.00 (in)
Depth:
5.00 (in)
Minimum Purchase:
1 unit
Maximum Purchase:
1 unit
Description

The RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying boost mapping and keeping optimized air-to-fuel ratios, the entire power and torque curve is shifted upward delivering +90 HP +106 HP in the 4.0 liter BiTurbo V8 engine (M177) Mercedes AMG SL Series, based on Dyno measured power figures.

The RPM is contained in a CNC machined 6061 aluminum case with pre-labeled wires and connectors. The RPM comes with a bypass that can be installed in place of the module for quickly turning the vehicle back to stock. The harness can be uninstalled for returning the vehicle back to stock.

Through our 30+ years of ECU tuning experience, countless hours of in-house R&D, and long-term testing the RPM ECU upgrade offers the best in quality, performance, and reliability. 

From the factory, the SL 55 AMG is delivered with 489 HP and 582 TQ. With the RENNtech RPM, the performance numbers go up to 579 HP and 700 TQ, gaining up to +90 HP and +106 TQ.

 

Performance Numbers Overview 

 

Mercedes-AMG SL 55 (MY2022+ | R232 | M177 | 4.0L V8 BiTurbo) Stock Performance (at crank):

  • Rated by Mercedes-Benz (avg.):                        469 HP @ 5,500-6,250rpm; 516 LB-FT @ 2,250-4,500rpm
  • Dyno measured by RENNtech (peak):               489 HP @ 4,900rpm; 582 LB-FT @ 3,400rpm
    • Note: Mercedes M177 engine performance when measured on the dyno obtains higher power numbers than rated from factory. Performance numbers published by MBUSA are a calculated average within a specific rpm range, which obviously result  in lower power numbers than at the peak. HP and TQ gains calculated by RENNtech are always based on peak stock results measured by RENNtech and upgraded peak results measured by RENNtech.
    •   

Mercedes-AMG SL 55 (MY2022+ | R232 | M177 | 4.0L V8 BiTurbo)  Modified Performance:

  • Rated by RENNtech (peak @crank):              579 HP @ 5,050rpm; 664 LB-FT @ 3,350rpm
  • Rated by RENNtech (peak @wheel):              486 whp @ 5,750rpm; 558 wtq @ 3,350rpm
    • Crank Performance Numbers are calculated with a 16% Drivetrain loss on 4MATIC+ vehicles.

For detailed explanation on crank HP, wheel HP, drivetrain loss, etc. please click here.
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