M177 ECU Tune W.1 Weistec (GLC63, C63) darwin pro g Often imitated but never duplicated

Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade

Installation: Please have a professional shop install product

2015 Mercedes-Benz G45 AMG

M177 VTA Adapter System The Weistec M177 VTA (Vent to Atmosphere) Adapters are designed and manufactured as a complete and simple bolt on solution for attaining the "blow-off" sound that many people are fond of on turbocharged vehicles without being excessively loud or high pitched

BMW M4 (G82/G83)

M177 ECU Tune W.1 Weistec (GLC63, C63) darwin pro g Often imitated but never duplicatedPLEASE SCROLL DOWN TO CONFIRM FITMENT TO YOUR VEHICLE! All 2020 models require bench flashing at this time. The M177 engine is a potent power plant. Through rigorous testing, on both the street and dyno, the Weistec M177 ECU Upgrade reliably extracts massive gains in the mid range of the powerband as well as substantial gains in the top end making it a top performer in all driving situations Weistec M177 ECU Power What does all this mean to you? More