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Note the OEM S55 air intake flows very well from the factory so gains are mostly present at higher boost levels and higher RPM where airflow requirements are highest
S55 BMW M3/M4 JB4 Map GuideMap 0: Disable JB4 / Full Pass Through ModeMap 1: Stage1 map adding approximately 40whp and 40wtq across the power band on pump gas
Give your G8x M3/M4 a transformation with a CSL Competizione Front Grill
2020 F92 BMW M8 with JB4
Mosselman Stage 1 N55 PWG Turbocharger Kit bore Note the OEM S55 air*PLEASE CONTACT FOR AVAILABILITY, PRODUCT MAY BE ON BACKORDER* Looking for more than just chiptuning? Our MSL Turbocharger for the N55 engine offers a huge boost in performance. By increasing the airflow and reducing backpressure, these turbos increase performance levels significantly without sacrificing reliability. To ensure maximum compatibility, theyre based on OEM quality turbos, but with several components of our own design to ensure the highest
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