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S 55 AMG

RENNtech ECU Hand Held Tuner (HHT) for S 55 AMG (W220- 370 HP / 410 TQ)

RENNtech ECU HHT (HandHeldTuner) for the 220 - S 55 AMG. Up to 370HP and 410 LB-FT TQ. Gains: +16HP & +19TQ.

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R1 Performance Package | W220 | S 55 AMG | 372 HP / 411 TQ | 5.5L NA V8 | M113

R1 Performance Package for 220 - S 55 AMG. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 372HP and 411TQ.

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