This catalog entry is for a pair of Vorshlag Polyurethane INSERTS to convert an existing set of E36/46/E92 M3 Competition NYLON motor mounts to poly. This will upgrade an existing set of Competition motor mounts to a more street-friendly version. Elimination of added NVH from the Nylon version but still very firm driveline mounting, for improved shift feel and throttle response over OEM mounts.
The Polyurethane we use for these inserts is a Red Shoreline 95 A (50 D) durometer material - (STIFF, but not quite HARD). Compare this to the available Nylon-6 material that is Shoreline 70 D durometer ("bowling ball hard"). The Nylon version's added engine vibration from idle to 1000 rpm goes away with our poly insert conversion.
Again: this catalog entry is for a pair of poly inserts only! Must already have Vorshlag Nylon Competition Motor Mounts to convert.