MCS-561487 - .040" thick MLS (Multi Layer Steel). Consists of a top and bottom layer of embossed stainless steel with both side coated with 250?C high temperature polymer rubber layer. The inner ring(s) are also stainless steel. The gasket layers are rivited together;

Fitment:
84-99 Evo B.T. with TP engineering pattern 4-1/8 big bore cylinders