STAINLESS STEEL DECOMPRESSION PLATE FOR BMW M50B25 TURBO - M50, M52 - 84 MM BORE
Fits to following engines: M50B25 (NV/VANOS), M52B25, M52B28 single vanos - 84 mm bore. STAINLESS STEEL DECOMPRESSION PLATE FOR BMW M50/M52 ENGINE. When you use our plate with two 1.75 mm thick head gaskets you will lower engine CR to ~8.5:1.