The stage 1 performance package for the Mercedes 550 series engine includes RENNtech’s proprietary ECU upgrade in addition to their stainless steel manifolds designed specifically for the 550 V8 for a combination that provides increased performance, sound and throttle response across the vehicles entire powerband.
This combination that provides noticeable increases horsepower, torque and throttle response across the vehicles entire powerband while still maintaining daily driver reliability.
Stage 1 Performance Package includes:
- RENNtech ECU Upgrade
- RENNtech Stainless Steel Manifolds
SL 550 (R230) Stock Performance:
- 382 HP / 391 LB-FT
- 413 HP / 422 LB-FT
- +31 HP / +31 LB-FT
Due to some of the products coming direct from RENNtech USA please allow 7-10 days for delivery
Prices may vary in accordance to the current exchange rate, please contact us for the current confirmed price