Torque Solution Engine Mount Torque Solution mounts are made of high quality billet aluminum material machined to precise tolerances. The heart of the mounts are made of high grade polyurethane material. These combination's of materials and measurements allow for unmatched performance and reliability.For street and race applications. Some vibration noticeable.. - Eliminates wheel hop / traction loss - Improved 60fts / e.t's - Made out of lightweight 6061-T6 billet aluminum - Street and track torture tested - Black anodized / Torque Solution Laser engraved - 75A durometer bushings - Life Time Warranty PROPOSITION 65 Proposition 65 requires businesses to provide warnings to Californians about significant exposures to chemicals that cause cancer, birth defects or other reproductive harm. WARNING: Cancer and Reproductive Harm.