Subframe

Performance Polyurethane Differential Bushing Set - E9X M3

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T#:596679

Part#: 026711ECS09

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$ 169.09 USD

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Upgrade your worn rubber bushings with ECS Tuning's Performance Polyurethane Differential Bushing Set. In-House Engineered to improve power delivery and handling, with a superior service life over the soft factory rubber bushings.

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Rear Subframe Bushings/Mount Set - Rubber - E46 M3, Z4 M

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T#:2051

Part#: TMS2051

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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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Polyurethane Subframe Bushings - 95A - E90 E91 E92 E93 E82 E88 ...

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T#:638054

Part#: 005686LA01KT

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$ 272.64 USD

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ECS Polyurethane Subframe bushings are ideal for street driven vehicles and those that see occasional autocross or track time. Featuring 95A durometer polyurethane, ECS Polyurethane Subframe bushings are 25% stiffer than street bushings. Engineered to perform, ECS Polyurethane Subframe bushings offer a supreme level of control, while still maintaining enough comfort for the street. Expect improved steering feel, turn in, more responsive handling and overall improved chassis composure.

Key Benefits:

95A Polyurethane isolator reduces unwanted drivetrain movement while still allowing for an aggressive yet streetable driving experience.

Polyurethane bushings reduce subframe bushing deflection versus stock rubber bushings while keeping vibrations associated with such modification to a minimum.

Poly formulation and durometer, profile, and loaded surface area designed to minimize stress concentrations to stay within acceptable compressive strain limits of the material

Tasked with keeping the vehicles rear end firmly mounted while absorbing noise, vibration, and harshness (NVH) ECS Polyurethane Subframe bushings were engineered to provide a balance of control while making ride quality more responsive, yet still streetable. As a factory bushings age, they become brittle and begin to harden and crack. When this happens the bushing will actually shrink and allow excess play, or movement in the subframe. This is typically felt by a sudden jerk or "thunking" noise under acceleration and is a leading cause of "sloppy" or "loose" suspension feel. By replacing the bushings with full polyurethane this play is eliminated since the subframe is being held in place by a much stiffer material that will not harden or shrink over time. Additionally, the inherent stiffness of the urethane material translates body forces much more directly. This means steering and acceleration inputs from the driver are effectively transferred to the wheels and vital road information is transmitted properly from the wheels to the driver.

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Rear Subframe Bushings/Mounts - Set - Group N Race Rubber - E82, E9X ...

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T#:12076

Part#: E9X-GPN-SUBFRAME

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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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Condor Speed Shop Rear Subframe Bushings - E34 BMW

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T#:577958

Part#: E34RSB

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$ 109.99 USD

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The subframe and differential mounting point is the heart of the rear suspension in an E34. When they move, so do all of the rear suspension mounting points. Replacing the stock rubber subframe and differential bushings with UHMW will limit drivetrain and suspension movement and keep your car’s suspension geometry the way it’s supposed to be. They will last longer than the original rubber and do not 'wind up' under load/unload, transferring more power through the axles to the wheels. Recommended for street or race use. Set of 2 subframe bushings.

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Revshift Billet Aluminum Subframe Bushing Kit - BMW E9X E82

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T#:1105926

Part#: ASB-E9X

Ships in 5 Business Days

$ 299.99 USD

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Revshift billet aluminum subframe bushings completely replace the oem rubber bushings on the BMW E82, E90, E91, E92, and E93 including the M3, 1M, and XI models. These bushings solid mount the rear subframe reducing wheel hop and improving the vehicles handling capabilities. The two piece bushing design sandwiches the subframe locking it in place. It will not shift on the bushings while driving like the one piece designs allow. They are CNC machined at Revshift in the USA from 6061-T6 billet aluminum.

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Rear Isolators

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T#:638042

Part#: 006012LA04

Special Order: No Guaranteed ETA

Sale - Save 5% $ 76.99

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$ 73.14 USD

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This product was last offered at the strikethrough price on
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Performance Polyurethane Differential Bushing Set - E9X M3

Rear Subframe Bushings/Mount Set - Rubber - E46 M3, Z4 M

Polyurethane Subframe Bushings - 95A - E90 E91 E92 E93 E82 E88 ...

Rear Subframe Bushings/Mounts - Set - Group N Race Rubber - E82, E9X ...

Condor Speed Shop Rear Subframe Bushings - E34 BMW

Revshift Billet Aluminum Subframe Bushing Kit - BMW E9X E82

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