The R1 performance package for the Mercedes 550 includes our proprietary ECU upgrade in addition to our stainless steel shorty headers designed specifically for the 550 V8 for a combination that provides increased performance, sound and throttle response across the vehicles entire powerband.
R1 performance package includes:
S 550 (W221) Stock Performance:
Modified Performance:
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7825 SW Ellipse Way, Stuart, FL 34997
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(+1) 561 - 845 7888
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