M177 Intake Air Filter Spacer Kit - Mercedes 4.0L BiTurbo C63 AMG C63s GLC63

E-Class (W212) C63 AMG / C63s AMG 2015–2021. CLS (W218) GLC63 AMG / GLC63s AMG 2015–2021. The factory M177 (4.0L V8 BiTurbo) airbox positions the filter against the upper lid, which can limit how evenly the filter sits inside the housing.