BMW Control Arm Replacements & Upgrades

Our experience with spherical front control arm?ball joints go back to those we designed and used in our IMSA E90 328i and E92 M3 racecars (GS class Champions in 2011).??We wanted to offer e30, e36, and e46 owners similar levels of handling precision and control for the track and street, but weren?t satisfied with the other options out there.? Instead of a Delrin? bushing or unsealed spherical bearing alone, we selected an oversized sealed greaseable spherical monoball to offer unparalleled durability and precision, but designed a Delrin? adapter sleeve to help isolate the added noise, vibration, and harshness that a full solid monoball bearing will have.?While race-ready,?our hybrid Delrin?/monoball control arm bearings are more at home on the street than other kits that are advertised as??race-only? bearings. We did extensive street, autocross, and track testing to ensure the spherical bearing used in this bushing design excelled in each setting.

The stock rubber bushings, even?those found in the M3,?allow significant fore/aft movement of the front wheels to help absorb road impacts, especially when being pushed hard. ?This soft flexible design maximizes daily driving comfort, but also allows considerable alignment change.? This unwanted deflection?stands between you and a crisp, confidence-inspiring driving experience. ?The advantage of a monoball bearing is that it will not deflect under load, eliminating all unwanted deflection while still allowing?complete freedom of movement?in the desired angles. What you get is superior steering precision with better handling from more consistent alignment?and direct braking feedback, with exceptional service life.? Thanks to the?Delrin? insert and double lip seals, there's none of the extra noise or reduced service life?often?found on?other?spherical bearings.

In short, if you're seeking front control arm bushings that offer precise, predictable handling, crisper braking feel, with a long service life free from noise - look no further. We have you covered.

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Watch to learn more about Turner Monoball Bushings

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Features:

Bearing housing

• Precision CNC?machined from 6061-T6 blue anodized aluminum with a pre-installed grease fitting and grease distribution channels making this a serviceable design
• Knurled for smooth press fit in a wide variance in ?lollipop? dimensions.?Want front control arm monoballs pre-installed in lollipop brackets??Click here.?

Bearing

• A high quality sealed bearing with Delrin? inserts. Delrin? was chosen due to durability under pressure, while still soft enough to create a perfect play-free fitment on the control arm.
• Replaceable for infinite service life - no need to replace the entire mount in the event a bearing happens to fail.

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Includes new hardware. Grease before installation and with each oil service with?high quality Moly grease?for maximum service life.?Need a grease fitting tool?

Installation is relatively easy - see our instructions here.

This item fits the following BMWs:?
1999-2005?E46 BMW?323i 323ci 325i 325ci 328i 328ci 330i 330ci - not for xi models?
2003-2008?E85 BMW?Z4 2.5i Z4 3.0i Z4 3.0si?

Enhance your BMW's performance with our premium control arm upgrade kit from Turner Motorsport! This kit provides a significant handling upgrade without sacrificing ride quality. Perfect for enthusiasts looking to replace their factory control arms with sturdier, high-performance alternatives, this kit features stiffer bushings and ball joints for improved precision.

Key Benefits:

Improved Handling: Experience more precise and responsive steering, giving your BMW a sportier feel. Increased Durability: Our control arms are much sturdier than factory units, ensuring long-lasting performance. Negative Camber Adjustment: Adds approximately 0.75 degrees of negative camber to the front, enhancing cornering grip and stability. Complete Kit: Includes all four M3-specific lower control arms with mounting hardware. M3 Headlight Leveling Rod: Necessary for proper installation, ensuring your headlights are correctly aligned. Important Note for Z4 Models: For Z4 owners, please be aware that the M3 headlight level sensor rod is positioned differently. A custom solution will be required to attach the sensor rod to the control arm. Currently, we do not offer a direct solution for this issue.

Upgrade your BMW's suspension with confidence! Enjoy a smoother, more controlled ride with our premium control arm upgrade kit!

Here at Turner we understand the importance of an upgrade that will get the results you need on the track and still be tolerable on the drive around town. When it comes to control arms on the track, making them as stiff as you can (usually using solid mounts) is the best way to increase your driving precision by eliminating the deflection of rubber. The next best thing to create a balance would be to stiffen up the control arm with polyurethane, giving you the option of a more stock like feel with 80a or closer to the solid feel with 95a durometers. These poly bushings will give your control arms a direct connection between your suspension and the body of the car eliminating the slop felt under take-off and braking so you feel more in control of your vehicle.

Already pressed into bracket so you can get right to the install.

*Featuring a delrin sleeve to eliminate heat deformation and premature failure.

This item fits the following BMWs that use a centered-style bushing: 

2001-2006 E46 BMW M3 

For all 2001 to 2005 325xi and 330xi. For convenience, we have assembled this bushing carrier bracket kit, to save you time when changing our control arm bushings. It includes two bushing carriers with pre-installed bushings (one left, one right) and mounting bolts.

 These bushing brackets fit all 2001, 2002, 2003, 2004, and 2005 model BMW 325xi and 330xi.

Here at Turner we understand the importance of an upgrade that will get the results you need on the track and still be tolerable on the drive around town. When it comes to control arms on the track, making them as stiff as you can (usually using solid mounts) is the best way to increase your driving precision by eliminating the deflection of rubber. The next best thing to create a balance would be to stiffen up the control arm with polyurethane, giving you the option of a more stock like feel with 80a or closer to the solid feel with 95a durometers.

When it comes to the E36 chassis you also get the options of choosing a stock centered design or going with the E30 inspired offset bushing to increase castor, further taking advantage of improvd handling. These poly bushings will give your control arms a direct connection between your suspension and the body of the car eliminating the slop felt under take-off and braking so you feel more in control of your vehicle. 

This item fits the following BMWs that use a centered-style bushing: 

1984-1991 E30 BMW 318i, 318is, 325, 325e, 325es, 325i, 325is 
1992-1999 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic
1996-1999 E36 BMW M3 S52
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i MZ3 M Coupe M Roadster 

Lemforder
This control arm upgrade was used on the high-performance 330i ZHP Performance Package and offered by BMW as a sport retrofit. These arms are identical dimensions as the regular arms so they are a direct replacement. But they have all metal ball joints instead of plastic or rubber. This means they last a lot longer and are much stronger. We used these in our Grand Am and World Challenge E46 racecars with excellent performance.

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. 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. For a street-driven car we advise yearly inspection and a full replacement every 3-4 years. For track-driven cars these should be inspected before every event and replaced every two years.

We also recommend replacing the bushings when changing the control arms. The bushings are mounted at the back of the control arm and located the arm to the frame rail on the car. The stock bushings are rubber and will wear out sooner than the control arms themselves. With the control arm off the car now is the perfect time to also replace the bushings.

Lemforder is the original equipment supplier to BMW for these control arms.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

Our experience with spherical front control arm ball joints go back to those we designed and used in our IMSA E90 328i and E92 M3 racecars (GS class Champions in 2011).  We wanted to offer e30, e36, and e46 owners similar levels of handling precision and control for the track and street, but weren’t satisfied with the other options out there. Instead of a Delrin® bushing or unsealed spherical bearing alone, we selected an oversized sealed greaseable spherical monoball to offer unparalleled durability and precision, but designed a Delrin® adapter sleeve to help isolate the added noise, vibration, and harshness that a full solid monoball bearing will have. While race-ready, our hybrid Delrin®/monoball control arm bearings are more at home on the street than other kits that are advertised as “race-only” bearings. We did extensive street, autocross, and track testing to ensure the spherical bearing used in this bushing design excelled in each setting.

The stock rubber bushings, even those found in the M3, allow significant fore/aft movement of the front wheels to help absorb road impacts, especially when being pushed hard.  This soft flexible design maximizes daily driving comfort, but also allows considerable alignment change.  This unwanted deflection stands between you and a crisp, confidence-inspiring driving experience.  The advantage of a monoball bearing is that it will not deflect under load, eliminating all unwanted deflection while still allowing complete freedom of movement in the desired angles. What you get is superior steering precision with better handling from more consistent alignment and direct braking feedback, with exceptional service life.  Thanks to the Delrin® insert and double lip seals, there's none of the extra noise or reduced service life often found on other spherical bearings.

In short, if you're seeking front control arm bushings that offer precise, predictable handling, crisper braking feel, with a long service life free from noise - look no further. We have you covered.

Watch to learn more about Turner Monoball Bushings

Features:

Bearing housing

• Precision CNC machined from 6061-T6 blue anodized aluminum with a pre-installed grease fitting and grease distribution channels making this a serviceable design
• Knurling allows for a wide variance in lollipop dimension, although this particular SKU comes pre-installed, so you won't need to worry about that. Want to install your own? Click here. 

Bearing

• A high quality sealed bearing with Delrin® inserts. Delrin® was chosen due to durability under pressure, while still soft enough to create a perfect play-free fitment on the control arm.
• Replaceable for infinite service life - no need to replace the entire mount in the event a bearing happens to fail.

Includes new hardware. Grease before installation and with each oil service with high quality Moly grease for maximum service life. Need a grease fitting tool?

Installation is relatively easy - see our instructions here.

This item fits the following BMWs that use a centered-style bushing: 

1984-1991 E30 BMW 318i, 318is, 325, 325e, 325es, 325i, 325is 
1992-1999 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic
1996-1999 E36 BMW M3 S52
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i MZ3 M Coupe M Roadster 

Control arms 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. 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. For a street-driven car we advise yearly inspection and a full replacement every 3-4 years. For track-driven cars these should be inspected before every event and replaced every two years.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

This item fits the following BMW Chassis:
F06,F10,F12,F13

This is the main rear upper control arm (or wishbone) for the E39 5-series. 

Control arms begin to wear over time, leading to sloppy control of your vehicle. Anything from knocking, steering vibration, or even loss of vehicle control could occur. An OEM replacement from Lemförder is the perfect option to restore control and suspension quality.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Brand: Lemforder (OEM)
Price is for the Left side arm.
This item fits the following BMWs:
1997-2003 E39 BMW 525i 528i 530i 540i M5

Control arms begin to wear over time, leading to sloppy control of your vehicle. Anything from knocking, steering vibration, or even loss of vehicle control could occur. An OEM replacement from Lemförder is the perfect option to restore control and suspension quality.

OEM Lemförder is an engineering company that focuses on high-quality, precision manufacturing of critical suspension and steering components. Providing exceptionally high quality parts directly to BMW, as well as 50+ other big name automotive companies, such as Mercedes and Audi, their history of reliability and variety of offered parts makes them one of the biggest names for a go-to OEM parts provider. Lemförder parts place an important emphasis on design, production, and assembly, ensuring maximum reliability. They even coat all parts possible with corrosion protection for extended longevity.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

The adjustable rear control arm provides on-car rear camber adjustment, from +1 to -3,  in order to get the perfect stance and alignment you are looking for. This control arm includes polyurethane bushings that are great for both the track and street use with taking away from comfort and bushing lifespan like many spherical joints.

Poweflex is a leading manufacturer of aftermarket suspension bushings. Using state of the art design and manufacturing, all replacement bushings are engineered to out-perform and out-last the ones that came in the car. Each line of bushings is meticulously tested and then re-tested to ensure perfect fitment and enduring quality through the life of the vehicle. A full lifetime warranty backs every one of their products and demonstrates the level of confidence and commitment Powerflex has to their customers.