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C43 & E43 AMG Stage 2 ECU Tune | 450HP / 520TQ | Pricing & Power Guide (2026)
Mercedes-AMG C43 and E43 Stage 2 ECU tune guide: 450+ HP and 520+ TQ on the M276 3.0T V6. Downpipe requirements, pricing and dyno-verified power gains. Tuning by YPG Motorsport.