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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
Rated by Mercedes-Benz: 577 HP @ 5
R1 Performance Package for 221 - S 550
When coupled with our transmission upgrade
Diverter Valve and Air Filters | Gains: +133HP
CLS 53 AMG
R1 Performance Package | R171 | SLK 55 AMG | 385 HP / 400 LB-FT | 5.5L NA V8 | M113 mercedes-benz-g-class--463---1990-2018--g63-amg-esr9701448 Rated by Mercedes-Benz: 577 HPR1 Performance Package for 171 SLK 55 AMG. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 385HP and 400 LB FT. Gains: +30HP & +24LB FT The R1 performance package for the Mercedes 55 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which offers a larger volume of incoming air for better engine breathing and improved cylinder filling. This combination that provides noticeable increases
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