Engine movement (deflection) is wasted horsepower, and that power is yours! BMR's suspension wants you to take it back with its solid motor mounts for 2008-2009 Pontiac G8s and 2014-2017 Chevrolet SSs. BMRs new motor mounts (MM301) are far superior to the bulky, oil-filled hydraulic stock motor mounts, which are designed for comfort, not performance. BMR manufactures its MM301 solid motor mounts in its Florida facility from MIG-welded -inch plate steel with 6061 billet aluminum machined spacers. The kit is completed with Grade 10.9 hardware.BMR's suspension designed the MM301 to be the perfect (100% bolt-in) motor mount for any power level or application (street performance, drag race, and road race) where engine deflection needs to be eliminated. The factory hydraulic motor mounts are designed to dampen engine vibration, giving you the smoothest and most comfortable experience possible. Unfortunately, this does little to limit engine movement. This deflection means lackluster throttle response, slower reaction times, and less accurate shifts in manual-equipped cars.