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Subframe

Subframe bushings are a common failure point on BMWs - replace these to refresh your BMW.
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Genuine BMW - Corporate Logo
T#:2051
Part#: TMS2051
In Stock
$ 291.99 USD
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$ 291.99 USD
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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

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Genuine BMW Motorsport - Corporate Logo
T#:12076
Part#: E9X-GPN-SUBFRAME
In Stock
$ 800.00 USD
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$ 800.00 USD
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The E82 and E90/E92 subframes have an inherent weakness in the rear subframe - the mounts are too soft for the power and torque these cars are capable of. The subframe is the heart of a BMW's rear suspension. As torque is transmitted through the differential and axles and as the tires grip the road, the subframe mounts are working to keeping everything in line. That's a tough task to hold when torque is increased with bigger boost (335i) or even mild tweaks (M3). While the M3 subframe mounts are a great upgrade for the non-M chassis these factory BMW Motorsport subframe mounts go one step further.

These Motorsport/Group N rear subframe bushings are a direct replacement upgrade over the stock mounts. They are rubber to conform to the rules of the Group N racing class - so they are still acceptable for street use as long as extra ride harshness can be tolerated. The rear subframe has to come down from the car for these mounts to be pressed in. So now is the perfect time to do other work as well - check out our other Motorsport Race bushings or M3 upgrades.

Price is for the set of 4 mounts.

This item fits the following BMWs:
2008-2012 E82 BMW 128i 135i 1M Coupe
2006-2011 E90 BMW 325i 325xi 328i 328xi 328i xDrive 330i 330xi 335d 335i 335xi 335i xDrive M3 - Sedan
2006-2012 E91 BMW 325xi 328i 328xi 328i xDrive - Wagon
2007-2013 E92 BMW 328i 328xi 328i xDrive 335i 335is 335xi 335i xDrive M3 - Coupe
2007-2013 E93 BMW 328i 335i M3 - Convertible
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Garagistic - Corporate Logo
T#:4126631
Part#: K0018-80
In Stock
$ 89.00 USD
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$ 89.00 USD
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These are Gargistic's original poly rear subframe bushings and are modified replacements that will not only reduce play in the rear suspension components substantially compared to the old and mushy OEM rubber bushings, but the "raised" design will move the subframe up 12mm to help correct some of the unwanted camber and toe that comes from lowering an E30. This has a similar effect to raising the suspension so the rear geometry resembles that of a stock height E30. The 12mm raised bushing's average geometry correction (camber and toe) is from -5 degrees to -1.5 degrees depending on your suspension setup. These bushings are slightly stiffer than the OEM units which will cause a tiny bit more NVH to be transferred through the chassis, but the benefits greatly outweigh the small sacrifice in comfort. 80A is the softest poly bushing in Garagistic's lineup and are perfect for a street performance E30 that will see the occasional autocross or track day. We highly recommend professional installation as these will require a press to install as well as remove your old bushings NOTE: When installing Garagistic raised subframe bushings, the differential mount will no longer line up with the mounting provision on the chassis, but there are a couple of solutions for this! The first option is to install extended studs and spacers onto the differential. This will effectively space the differential back down 12mm from the raised subframe back into the factory position. This will allow the use of a standard centered differential bushing and maintains the factory driveline geometry. The second option is to simply run an offset differential bushing. This will allow the differential to be mounted to the subframe in the factory orientation and the repositioned hole in the differential bushing to line up with the factory bracket. This will change the driveline geometry in the rear! Garagistic have used both methods with success on street and track applications. Includes: 2 Raised E30 Rear Subframe Bushings 2 Inner Races Lifetime Warranty! Compatibility: Fits BMW 3 Series E30 (318, 323, 325 & M3) - DOES NOT FIT iX models Replaces OEM Part Number 33311129144 (33-31-1-129-144)
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