New rear subframe bushings can make your BMW feel a lot more planted, especially in high power builds. Upgrading to poly or solid will lessen deflection, making you feel more connected to the road and giving you, the BMW enthusiast, a more refined driving experience.
034Motorsport is pleased to present Billet Aluminum Rear Subframe Mount Inserts for E9X BMW models! E9X BMWs use rubber rear subframe mounts which deflect under load, causing the rear end to feel vague and loose, as well as leading to less-than-optimal suspension geometry and increased understeer. These precision-machined billet aluminum inserts are designed to fill voids in the factory rear subframe mounts, and limit subframe movement without sacrificing ride quality or introducing any perceivable additional noise, vibration, or harshness into the cabin. The result is a more refined, connected driving experience, as well as improved effectiveness of aftermarket rear sway bar upgrades and suspension components.
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Replacing your worn stock rubber subframe bushings with IRP's polyurethane bushing set will transform the way your car drives. Stiffer than stock, these bushings still absorb NVH which allows them to be comfortably used on the street without heavily reducing ride quality.
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Aluminum subframe bushings prevent your subframe from shifting around as the chassis bends under load, unlike the stock rubber bushings. With only a slight increase in NVH, these aluminum bushings from IRP will keep the rear end of your BMW substantially more planted.
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