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BMW Control Arm Replacements & Upgrades for BMW E30 M3 S14 2.3L

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Control arms, and their integrated ball joints, are some of the most crucial components on a BMW suspension. The control arms literally control the wheel and suspension as they go through their range of motions. They do more than just keep the alignment in a constant spec - they are a vital locating component for the suspension itself. A faulty or worn control arm or ball joint is a very dangerous and potentially life-threatening problem so make sure they are inspected and replaced at regular intervals.

Most control arms for BMWs consist of an inner and outer ball joint made of plastic, rubber, Delrin, or metal and covered in grease with a rubber boot to seal it from the outside. The ball joint rotates and spins as the control arm goes through its movements and that will wear the ball joint and make it loose. The grease inside the housing can also get used up, evaporate, or become contaminated from moisture and foreign particles. As the ball joint becomes worn it can result in excess movement within the housing. Your steering and handling will become less precise and there is usually a light clunking or clicking sound. In rare and extreme cases the ball joint can separate from the control arm completely, leading to a total loss of suspension and steering control. You should have the ball joint play checked annually and replace them every 3-4 years. Most track organizations will not allow a car if they are older than three years.

Control arms also take abuse from impacts and handling forces. Aluminum control arms will generally bend and prevent an accurate alignment. Steel control arms will crack and fracture and require close inspection annually and replacement every 3-4 years.

We sell OE BMW, OEM, and performance upgrade control arms from proven manufacturers. The control arm is so important to a BMW suspension that we insist on only top quality brands and designs and will never sell a control arm based on price alone. We also have upgrade packages with superior designs and better bushing options and we have bundled these together with valuable package savings.

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DTM Style Rear Trailing Arm Bushing Kit - w/ Fluro Motorsport Bearing...

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T#:39025510

Part#: IRPDTM-30B

Ships on Aug 12, 2026

$ 542.99 USD

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$ 542.99 USD

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Upgrade your rear trailing arms with this DTM-style adjustment kit from IRP. This kit replaces the stock bushing side of the rear trailing arm - requires cutting of the rear trailing arm and welding of the new bushings in place. Professional installation is highly recommended.

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BMW E30 Suspension Refresh Kit

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:639151

Part#: E308PCKITM3

In Stock

$ 239.99 USD

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$ 239.99 USD

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Front Upgrade Kit; uses stiffer M3 bushings, which fits standard E30 models Includes: (1) 31 12 1 127 725 (1) 31 12 1 127 726 (2) 31 35 1 091 764 (2) 32 11 1 125 186 (1) 31 12 9 061 222

URO Steel Front Control Arm - Left - BMW E30

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:362018

Part#: 31121127725

Ships in 1 Business Day

$ 67.99 USD

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$ 67.99 USD

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Includes ball joints

Front Inner Ball Joint - Priced Each

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:373228

Part#: 31121126253

Ships in 1 Business Day

$ 15.99 USD

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$ 15.99 USD

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Front lower ball joint from control arm to lower sub frame

Front Control Arm Bushing Set

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:384530

Part#: 31129061222

Ships in 1 Business Day

$ 32.99 USD

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$ 32.99 USD

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Restore the handling and road feel you expect from your legendary M3. Old and failing bushings detract from your driving experience, so replace them immediately and enjoy a proper suspension feel.

Front Outer Ball Joint - Priced Each

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2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:373229

Part#: 31121126254

Ships in 1 Business Day

$ 13.99 USD

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$ 13.99 USD

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Need to replace the control arm ball joint but don't want replace the whole arm? Here is the solution, a new ball joint designed to fit the stock control arm.

IRP Lock Kit Standard Drift Suspension Kit - E30

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:401483

Part#: IRPDK30-1

Special Order: No Guaranteed ETA

$ 1,209.99 USD

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$ 1,209.99 USD

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Looking to upgrade your front suspension to increase the strength and your steering angle for the track? IRP has you covered with their BMW Lock Kit. This kit includes new control arms that are stronger than stock and have monoball ball joints, new tie rod ends that feature steel monoball ball joints as well, new offset control arm bushings, fully adjustable camber plates, roll center/bump steer correction plates, and all new hardware. This enables this kit to be fully plug and play, giving you a much more adjustable front suspension, and increases the total amount of steering angle up to 65 degrees.

This kit is perfect for those looking to build a drift car and ensure their suspension is ready to take on the challenge.

Kit features:

CNC Laser Cut Components
Plug & Play - includes all needed hardware
Increase to 65 Degree (or more) steering angle
Includes Camber Plates
Stiffer offset control arm bushings
Roll Center and Bump Steer Correction Plates
High strength control arms with steel monoball ball joints
Increased length steering tie rods with steel monoball ball joints
DriftAllstar- & EEDC-Tested
Total weight of all components included: 13.5 kg / 29.8 lbs

Fits the following BMWs:
1982-1991 E30 BMW All RWD Submodels

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IRP Lock Kit Pro Drift Suspension Kit - E30

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:401477

Part#: IRPDK30-2

Special Order: No Guaranteed ETA

$ 1,567.99 USD

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$ 1,567.99 USD

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Looking to upgrade your front suspension to increase the strength and your steering angle for the track? IRP has you covered with their BMW Lock Kit. This kit includes new control arms that are stronger than stock, are a chromolon tubular system, and have monoball ball joints, new tie rod ends that feature steel monoball ball joints as well, new offset control arm bushings, fully adjustable camber plates, roll center/bump steer correction plates, and all new hardware. This enables this kit to be fully plug and play, giving you a much more adjustable front suspension, and increases the total amount of steering angle up to 70 degrees.

This kit is perfect for those looking to build a drift car and ensure their suspension is ready to take on the challenge.

*This Pro kit offers reduced weight control arms that help this kit shed 2.9 lbs from the standard kit while still remaining just as strong thanks to their chromolon tubular design.*

Kit features:

CNC Laser Cut Components
Plug & Play - includes all needed hardware
Increase to 70 Degree (or more) steering angle (5 degrees more than standard version)
Includes Camber Plates
Stiffer offset control arm bushings
Roll Center and Bump Steer Correction Plates
High Strength chromolon tubular control arms with steel monoball ball joints (2cm wider than standard version)
Increased length steering tie rods with steel monoball ball joints
DriftAllstar- & EEDC-Tested
Total weight of all components included: 12.2kg / 26.9lbs (1.3kg / 2.9lbs lighter that standard version)

Fits the following BMWs:
1982-1991 E30 BMW All RWD Submodels

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