Suspension mounts are designed to absorb the energy of the shocks and springs and isolate road harshness from the chassis. But over time the original rubber mounts will crumble and fail. We have stock mounts and bushings as well as a wide selection of upgraded and heavier-duty for performance street cars. We also offer a full selection of race only bushings and mounts. Simply choose your car below. Included here you will find rear shock tower mounts, front strut mounts, subframe mounts, lower control arm bushings, rear trailing arm bushings, and more.
Any subframe work or reinforcement project on the rear of the E46 M3 should include a new set of subframe mounts. It's the worn rubber bushings that contribute to failed rear subframes on the E46 (but not the only reason). As the rubber gets worn, there is more flex to the mount. This flexing is then transferred to the sheetmetal in the floor where the spot welds will pop and the sheetmetal will crack. Additional force coming from stiffer suspensions and stickier tires will only increase the flexing of the mounts/chassis.
Of course, stiffer mounts would help prevent this problem but with a stiffer bushing comes ride harshness, vibration, and additional noise. Our engineers and technicians recommend replacement with the factory rubber bushings (along with the appropriate reinforcement of the floor). The rubber bushings help isolate bumps and impacts and are quiet. They are also a perfect fitment and require no maintenance.
This item is a set of 4 Original BMW rubber subframe mounts. Individual part numbers - 33 31 2 283 573 (left front), 33 31 2 283 574 (right front), and 33 31 2 283 419 (left and right rear, x 2).
Applications: 2001-2006 E46 M3, M3 CSL coupe, convertible 2007-up Z4 M Roadster, M Coupe
Condor's Offset Rear Trailing Arm Bushings (RTABs) are perfect for the street and the track. They're designed to help correct rear toe-in and toe-out issues on lowered cars. To correct for toe-in: RTABs can be installed with the thick side inboard to help push the rear trailing arms towards the outsides of the car. To correct for toe-out when running minimal camber setup: RTABs can be installed with the thin sides inboard to help push the trailing arms inwards. The amount of total adjustment is purely dependent on how low your car is, but we've seen toe adjustment from 1/8” out on each side to 1/8” in on each side, which is a super nice range for the e36 rear end! They use UHMW in all of their suspension bushings because it is self-lubricating, meaning it requires no grease when installing, has almost zero deflection yet also absorbs some vibration. It will outlast other types of rubber or urethane bushings. They include black oxide plated steel plates for each RTAB to prevent lateral movement between the bushing material and the aluminum. Polyurethane and rubber bushings will deflect and slide, causing your rear alignment settings to change mid-corner. With these bushings, you won't have to worry about dynamic changes in your toe settings; the rear alignment stays in check during hard cornering, braking, and acceleration. This item fits the following BMWs: 1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3 1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe Kit includes a pair of trailing arm bushings
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