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Mercedes
C-Class
C - 203 (2001-2007)

C - 203 (2001-2007)

RENNtech ECU Hand Held Tuner (HHT) for C 55 (W203- 380 HP / 395 TQ)

RENNtech ECU HHT (HandHeldTuner) for the 203 - C 55 AMG. Up to 380HP and 395 LB-FT TQ. Gains: +18HP & +17TQ.

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R1 Performance Package | W203 | C 55 AMG | 385 HP / 400 TQ | 5.5L NA V8 | M113

R1 Performance Package for 203 - C 55 AMG. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 385HP and 400TQ.

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RENNtech ECU Upgrade for C 350 (W203- 290 HP / 278 TQ)

RENNtech ECU Upgrade for 203 - C 350, up to 290HP, 278TQ. Gains: +22HP & 20TQ

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R1 Performance Package for C 32 AMG (C203- 394 HP / 387 TQ)

R1 Performance Package for 203 - C 32 AMG. Includes ECU Upgrade and Larger Crankshaft Pulley. Up to 394 HP and 387 TQ.

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