We offer for sale a release spacer for a head made of acid-proof steel, 0.8mm thick. The spacer serves to lower the compression ratio of the engine in order to allow for increased power
 through the installation of a turbocharger or compressor. The spacer is mounted between the 2 factory head gaskets. The spacer along with the gaskets reduces the compression ratio 
depending on the engine and pre-planned head and block surfaces. The spacer is designed for the M54b30 engine The product is made in POLAND, burned on a fiber laser. Our products have been tested in extreme conditions on various battle squares - including drifting and rallies. They have never failed!