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Subframe Bushings

Your BMWs subframe bushings were designed to mitigate vibration and harshness. When mileage accumulates these bushings dry out, crack, and eventually split. When this happens vibrations and noise increase. Turner Motorsport carries Genuine BMW and high quality aftermarket alternatives that will restore lost handling and comfort.
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Rear Subframe Bushings/Mount Set - Rubber - E46 M3, Z4 M
Rear Subframe Bushings/Mount Set - Rubber - E46 M3, Z4 M
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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Rear Subframe Bushings/Mounts - Set - Group N Race Rubber - E82, E9X
Rear Subframe Bushings/Mounts - Set - Group N Race Rubber - E82, E9X ...
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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IRP Polyurethane Subframe Bushing Set - 90A - E9X, E8X (non-M)
IRP Polyurethane Subframe Bushing Set - 90A - E9X, E8X (non-M) ...
IRP - Individual Racing Parts - Corporate Logo
T#:2408491
Part#: IRPRSB-90PU
Special Order: No Guaranteed ETA
$ 169.00 USD
Free Shipping on orders $49 and up
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$ 169.00 USD
Free Shipping on orders $49 and up
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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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IRP Aluminum Rear Subframe Bushing Set - E82, E9X (non-M)
IRP Aluminum Rear Subframe Bushing Set - E82, E9X (non-M)
IRP - Individual Racing Parts - Corporate Logo
T#:2408474
Part#: IRPRSB-90AL
Special Order: No Guaranteed ETA
$ 319.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 319.99 USD
Free Shipping on orders $49 and up
Add to Wish List
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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IRP Aluminum Rear Subframe Bushing Set - E9X M3, E82 1M
IRP Aluminum Rear Subframe Bushing Set - E9X M3, E82 1M
IRP - Individual Racing Parts - Corporate Logo
T#:2408494
Part#: IRPRSB-90MAL
Special Order: No Guaranteed ETA
$ 294.99 USD
Free Shipping on orders $49 and up
Add to Wish List
$ 294.99 USD
Free Shipping on orders $49 and up
Add to Wish List
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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