Subframe Bushings

A BMWs sub-frame is the heart of the suspension - as the subframe twists and shifts under load all of the suspension mounting points also move. The rear suspension feels loose and lacks precision. As rubber or hydroelastic bushings wear the bushing deflection gets worse. If you have a highly tuned 335i/xi you're putting even more strain on weak bushings. The solution is a stiffer and more durable material. Even BMW has moved to solid mounts on the F10 M5 and F8X M3/M4. These fully solid E82/E90/E92 aluminum mounts have zero deflection - the subframe does not move at all. The rest of the suspension can work as designed and maintain the proper alignment and motion ratios. The driver will notice the difference as the car is more stable and the handling is more precise.

Although we designed these for use in our racecars, they can work on the street so long as the driver can tolerate some additional noise, vibration, and harshness. These mounts are CNC machined in the USA and made with high-grade aluminum. The set is for all four subframe mounts.

These solid rear sub frame mounts fit: 
2008-2012 E82 BMW 128i 135i 
2006-2011 E90 BMW 325i 328i 330i 335d 335i - Sedan 
2006-2011 E91 BMW 325i 328i - Wagon 
2007-2012 E92 BMW 328i 335i 335is - Coupe 
2007-2012 E93 BMW 328i 335i - Convertible 

Modern BMW's are beginning to leave the performance derived handling and power delivery in the past as the demand for more comfort and features rises. The stiff suspension components designed around having the best driving experience from a luxury car has been left for the M models and replaced with soft rubber bushings and mounts. Unfortunately, this is a good move by BMW to support the masses.

The obvious approach was to offer products so the modern BMW can be upgraded into the car the enthusiast desires, superb handling, control, and a direct delivery of power to the rear wheels. When you upgrade to our Delrin subframe mounts you reconnect that power with almost zero negative feedback.

The added appeal to someone looking to take one of these machines on the race track is Delrin can be used when solid mounts are needed and aluminum is not an option with strict regulations found in Grand-Am, BMW CCA, and other racing series.

Product features:

• Precision machined Delrin(TM) 150 bushings.
• Precision machined 6061-T6 aluminum inserts. 
• Class legal for any racing class that does not allow a solid subframe bushing. 

Performance Benefits:

• Eliminates subframe movement for more direct throttle and suspension  response. 
• Minimizes wheel hop due to subframe deflection and movement. 

***Installation Instructions***

These GAC differential bushings/mounts fit the following BMWs: 
2014+ F22 BMW 228i 228iX M235i M235iX 
2012+ F30 BMW 320i 320iX 328i 328iX 335i 335iX - Sedan 
2014+ F34 BMW 328i 328iX 335iX - Gran Turismo 
2014+ F32 BMW 428i 428iX 435i 435iX - Coupe 
2014+ F33 BMW 428i 428iX 435i 435iX - Convertible
2014+ F36 BMW 428iX -Gran Coupe