These mounts are designed for a 1983-1991 E30 BMW 3-series with an M20 engine.Revshift polyurethane motor mounts are made in the U.S.A. from high grade polyurethane.Revshift mountsare the most durable and reliable mounts on the market. CNC machinedbillet aluminum flanged ends are embedded deep in the urethane whichprevent the isolated ends from separating under extreme loads. Utilizingclass 14.9 alloy steel removable screws these mounts will hold your engine in place for a lifetime. To further ensure thestrength of these mounts we form the threads with a forming tap whichcreates denser and stronger threads in the billet aluminum end pieces.These mounts have removable screws for ease of installation. We recommend using loctite on the threads during installation.Sold as a pairLifetime warranty Hardness80A black: Slightly stiffer and stronger than OEM rubber. No additional NVH. Great choice as an upgraded stock replacement (OEM+).95A green: Significantly stiffer and stronger than OEM rubber. Minor increase in NVH. Excellent for enthusiastically driven street cars and track cars.70D white: Drastically stiffer and stronger than OEM rubber. Moderate increase in NVH. Most commonly used on dedicated track cars.(NVH = noise, vibration, harmonics) Learn more about choosing polyurethane here: https://revshift.com/pages/polyurethane Please specify the hardness.
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