Thanx bro,i think ill get a 2mm midell layer machined and just add the top and bottom halfs of mk4 gasket... just curious as to if arps are really needed.. i plan to run max 0.5 bar stock bottom end,standalone ecu,1 step colder plugs and front mount intetlcooler,want to step it up to about 0.8 bar once decompression plate is on. you think that will be safe?