BMW Control Arm Replacements & Upgrades

If you are looking for a wider range of camber adjustability in the rear of you car, the IRP Adjustable rear lower control arm is exactly what you need! Built to be much stronger than stock, these rear control arms feature inner monoball bushings and are built of steel, reducing the weight as well. These are perfect for a lowered car or for a track car that needs a greater level of rear adjustment.

Features:

• Strong Steel Construction
• Adjustable
• Painted Yellow For Corrosion Protection
• Weight Reduction
• Monoball Inner Mount

This item fits the following BMWs:
1992-1999 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

Stock rear lower control arms offer very little adjustment for alignment, especially in lowered vehicles, due to their use of an eccentric bolt. These aftermarket performance control arms from ECS Tuning are designed for maximum adjustability, allowing you to maximize handling and minimize tire wear.

To ensure maximum reliability, ECS Tuning's control arms are constructed from strong, lightweight 6061-T6 aluminum and feature a 303 stainless steel center turnbuckle that offers over 8 degrees of fast and precise camber adjustment. The inner bushing is a stock style serviceable OEM bushing for long life and inexpensive maintenance.

Features:

Durable construction suitable for the daily driver and track car alike
8+ degrees adjustment range for dialing in any suspension and wheel/tire setup
Center located adjuster for maximum clearance during adjustment
OEM-style bushing for long life and inexpensive service
Black anodized 6061-T6 aluminum with 303 stainless steel turnbuckle
Includes new hardware
*With the exception of the stance community, most enthusiasts will need no more than a few degrees of adjustment range. Total adjustment often is dependent on wheel/tire clearances.

The rear lower control arms on E82/E9X models are the weakest link in the rear suspension. The arm is made from folded sheetmetal and it bends and deforms easily. Not only will it deform from potholes and curbs, tow truck drivers love to hook onto them without realizing how weak they are. We have seen other race teams complete the box section to make them stronger. A bent arm will throw off the geometry in the suspension, potentially affecting handling and tire wear. These aluminum arms are both lighter and stronger than the factory sheetmetal arms and is the best solution for chronic bending of the stock arm. These are a direct replacement to your stock arms with no changes needed to your alignment. New high-grade hardware is included.

Note: the stock arm is designed from the factory to be intentionally weak. These arms will bend so that something else in the suspension does not break. Our race cars used the stock sheetmetal arm but we replaced them often. We found that it was better to finish a race with a bent arm than not finish due to a catastrophic failure. The ECS arms are still designed to be the weakest link but are far stronger than the factory arm and will not bend as easily.

This item fits the following BMWs:

2008-2013 E82 E88 BMW 128i 135i 1M Coupe
2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi 335i 335xi M3 - Sedan
2007-2011 E91 BMW 325i 325xi 328i 328xi - Touring Wagon
2007-2013 E92 BMW 328i 328xi 335i 335is 335xi M3 - Coupe
2007-2013 E93 BMW 328i 335i 335is M3 - Convertible

The E36/E46 rear trailing arm bushings (RTABs) wear out faster than any other bushing on the car. Worn RTAB will cause excessive toe alignment change and give a 'loose' or 'floaty' feeling in the rear handling. One of the reasons for this is that they over-extend during motion, stretching and twisting the rubber in all directions. These shims sit on either side of the bushing and limit the amount of extension from the bushing. Not only will you get more life from your RTAB but these will help stiffen the bushing during cornering. But during normal driving you will still have all of the comfort of the stock rubber bushings. These part about these bushings is how easy they are to install - simply slide them in place during your bushing install. They can be added to pre-installed bushings too by dropping the trailing arm and removing the cage around the bushing.

Works with stock rubber bushings only (not urethane or Delrin).

For BMW E36 and E46 chassis this tubular style arm is great when lowering this popular vehicle, or for correcting rear camber on stock vehicles. 

Rear Adjustment range: Camber -1.00° to +3.00°
Installation time: 1.3 hr/side
Required: 1 per wheel

SPL Parts is a performance suspension manufacturer that designs and tests their products all in-house here in the USA. Additionally, all materials used are sourced from American suppliers to ensure consistently high quality products. SPL Parts products are all constructed using chromoly seamless straight tubing, DOM mandrel bent tubing, and 6061 and 2024 aluminum for high strength and quality. All TIG welding and CNC machining is also done locally by professional welders and machine shops to meet exact quality standards and tolerance specifications. For anything from racing to street driven needs, SPL Parts offer an amazing line of premium quality products that are perfect to get your car back in spec.

Factory BMW eccentric bolts only allow for small toe adjustments and often slip under hard cornering, effectively changing your alignment. SPL eccentric lockout kits eliminate stock eccentric bolts - you must have adjustable rear toe arms to utilize this kit in your setup; 

Technical Specifications:

• CNC machined from 6061 aluminum
• CAD plated grade 10.9 hardware
• Include washers and bolts for both sides of your vehicle.
• Made in the USA!

Fits the following BMWs:
2006-2013 E9X BMW RWD Sub-Models
2008-2013 E82 BMW All Submodels

The SPL BMW F2X/F3X Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the rear wheel drive (RWD) F2X/F3X BMWs while eliminating bushing deflection resulting in sharpened steering response and driving precision.

Negative Camber Benefits

The ability to run more negative camber greatly improves the peak lateral grip available. Adding negative camber results in the tire having an optimal contact patch as the body rolls due to cornering forces. This is especially important with better tires and a must-have for anyone looking to prevent excessive outer shoulder wear (and heating) on their tires due to a lack of camber.

Wider Front Track Width Benefits

Further handling improvements can be had by increasing the front track width from the factory 60.5" (F3X) or 59.9" (F2X) to be closer to the M3's 62.2". If you applied the M3's width to the M340i it would reduce the outer front tire loading by roughly 20 lbs and apply it to the inner front tire. The result would be greater peak grip (~0.04G), improved stability, and faster lap times.

Roll Center Correction Benefits

Lowering the F2X/F3X results in a greater distance between the front roll center and the center of gravity. This acts like a longer lever, creating more body roll, bumpsteer, and requiring additional static camber angle to maintain the same handling. The SPL front lower control arms allow the roll center to be corrected for a wide range of ride heights to improve handling and stability.

The lower control arms come with a ride height sensor bracket to maintain the factory ride height sensor location, regardless of length of the arm to keep those finicky BMW chassis electronics happy.

Benefits

Adjustable Camber, Roll Center, and Track Width

Eliminates Bushing Deflection

Improved Tire Life with Ideal Camber Settings

Lightweight, High-Strength Construction

Stackable 304SS Roll Center Spacers in 1/8" and 1/4" Sizes

US Made, PTFE Lined FK Rod Ends 

Materials

6061-T6 aluminum black anodized arm, clamps, and spacers

4130 CrMo electroless nickel-plated double adjuster

Ti6Al4V titanium socket head cap screws

304 stainless steel roll center and knuckle spacers

5/8" 4140 CrMo stud

FK PTFE-lined spherical bearings (F1 spec, self-cleaning)

Suitable for all uses, from daily driver to race car.

BMW G8X M3 M4 Rear Upper Arms are essential for maintaining optimal rear camber and minimizing tire wear for both street and track driving. The stock BMW setup can lead to excessive negative camber, especially noticeable in lowered vehicles, resulting in premature tire wear and reduced traction. These adjustable Rear Upper Arms provide a broad range of adjustment for precise rear camber alignment, crucial for both performance and longevity.

• Enhanced Camber Adjustment: Offers a wide range of adjustment for precise rear camber alignment, optimizing performance on the street or track.
• Durable Construction: Features gun-drilled 2024 Aluminum traction links and a 6061-T6 Billet Aluminum rear upper camber arm, black anodized to prevent corrosion.
• Improved Articulation: Replaces soft factory rubber bushings with smooth, Teflon-lined rod ends, eliminating bushing deflection.
• Lightweight Design: Reduces unsprung weight with aluminum components and Blue Anodized Titanium Socket Head Cap Screws.
• Easy Adjustment: Innovative 360-degree rotating clamp design and double adjuster feature allow for quick and precise camber adjustments without removing the arm.

Upgrade your BMW G8X M3 or M4 with these Rear Upper Arms for superior performance, durability, and ease of adjustment.

These SPL parts adjustable rear camber arms replace OEM part number 33326770813

SPL Parts is a performance suspension manufacturer that designs and tests their products all in-house here in the USA. Additionally, all materials used are sourced from American suppliers to ensure consistently high quality products. SPL Parts products are all constructed using 6061-T6 aluminum tubing, DOM mandrel bent tubing, and 6061 and 2024 aluminum for high strength and quality. All TIG welding and CNC machining is also done locally by professional welders and machine shops to meet exact quality standards and tolerance specifications. For anything from racing to street driven needs, SPL Parts offer an amazing line of premium quality products that are perfect to get your car back in spec.

These rear camber arms allow for significantly greater camber adjustment over stock, a major benefit to lowered cars that need their camber readjusted to prevent tire wear and poor handling. These camber arms also provide increased stability and predictability versus the stock camber arms with rubber bushings.

Technical Specifications:

• Lightweight Aluminum, Titanium, and Chromoly construction
• Anodized Black for corrosion protection and durable finish
• Gundrilled center hex links for maximum weight savings
• Teflon lined FK Rod Ends
• Made in the USA

Fits the following BMWs:
1992-1999 E36 BMW All Submodels
1999-2006 E46 BMW RWD Models

These SPL Parts rear adjustable toe arms replace OEM Part number 33322283549

SPL Parts is a performance suspension manufacturer that designs and tests their products all in-house here in the USA. Additionally, all materials used are sourced from American suppliers to ensure consistently high quality products. SPL Parts products are all constructed using chromoly seamless straight tubing, DOM mandrel bent tubing, and 6061 and 2024 aluminum for high strength and quality. All TIG welding and CNC machining is also done locally by professional welders and machine shops to meet exact quality standards and tolerance specifications. For anything from racing to street driven needs, SPL Parts offer an amazing line of premium quality products that are perfect to get your car back in spec.

When lowering your vehicle, toe alignment is thrown off. These SPL adjustable toe arms offer a wide range of toe adjustment and are a significant improvement over stock, eliminating suspension deflection and increasing handling response thanks to the FK Bushings rod ends that are Teflon lined. In addition, this kit includes Eccentric lockout components. This guarantees that your toe alignment won't slip under aggressive driving due to an eccentric bolt.

Technical Specifications:

• Gundrilled 2024 Aluminum Links to reduce unsprung weight
• 6061 Aluminum Clamps and Heim Joint Spacers
• Titanium Socket Head Cap Screws
• Rotating clamp design allows for easy access to lock down your alignment settings
• Low friction 3 piece Teflon lined FK Heim joints/rod ends made in Connecticut
• 6061 Aluminum Eccentric Lockout Washers
• Grade 10.9 Hex Cap Bolts with Lock Nuts
• Made in the USA!

Fits the following BMWs:
2006-2013 E9X BMW M3
2008-2013 E8X BMW 1 M

MINI F54 to F60 Rear Adjustable Camber Arm - Pair - SPC Performance - Lower is designed to enhance the handling and alignment of lowered MINI vehicles. This adjustable control arm allows for precise rear camber adjustments while maintaining factory alignment settings, making it ideal for vehicles with modified suspension setups.

• Enhanced Adjustability: Offers a camber adjustment range of ±3.0°, allowing for precise alignment tuning.
• Durable Construction: Made from high-strength steel with fully forged ends for maximum durability and performance.
• Reduced NVH: Features high durometer rubber bushings that minimize noise, vibration, and harshness for a smoother driving experience.
• Improved Handling: Helps retain factory alignment even with lowered suspension, optimizing handling characteristics.

This set includes two rear camber arms for a complete upgrade.

The SPL BMW F2X/F3X Front Lower Control Arms (FLCA) provide roll center, camber, and track width adjustment for the xDrive-equipped F2X/F3X BMWs while eliminating bushing deflection resulting in sharpened steering response and driving precision.

The ability to run more negative camber greatly improves the peak lateral grip available. Adding negative camber results in the tire having an optimal contact patch as the body rolls due to cornering forces. This is especially important with better tires and a must-have for anyone looking to prevent excessive outer shoulder wear (and heating) on their tires due to a lack of camber.

The lower control arms come with a ride height sensor bracket to maintain the factory ride height sensor location, regardless of length of the arm to keep those finicky BMW chassis electronics happy.

Benefits

Adjustable Camber, Roll Center, and Track Width

Eliminates Bushing Deflection

Improved Tire Life with Ideal Camber Settings

Lightweight, High-Strength Construction

Stackable 304SS Roll Center Spacers in 1/8" and 1/4" Sizes

US Made, PTFE Lined FK Rod Ends 

Materials

6061-T6 aluminum black anodized arm, clamps, and spacers

4130 CrMo electroless nickel-plated double adjuster

Ti6Al4V titanium socket head cap screws

304 stainless steel roll center and knuckle spacers

5/8" 4140 CrMo stud

FK PTFE-lined spherical bearings (F1 spec, self-cleaning)

Suitable for all uses, from daily driver to race car.

ALTA Rear Control Arms are the ultimate upgrade for your MINI, replacing your rear lateral links with a solid and performance-focused design. These control arms enhance traction and handling while giving you precise control over camber and toe settings. The flexibility of ALTA control arms allows for fine-tuning without the hassle of removing and reinstalling the linkage. Simply adjust the lock nuts and twist the center section to achieve your desired settings.

These control arms are the perfect complement to other suspension products like springs, coilovers, or sway bars.

Key Features of ALTA Rear Control Arms:

• CNC machined from 6061 aluminum rod for durability.
• Heavy texture powder coating for corrosion resistance and added style.
• Teflon-lined spherical rod ends for a solid connection and improved articulation.
• Aircraft-quality spherical bearings for smooth and precise movement.
• Injected Nylon around the ball center for quiet operation as the part ages.

For a comprehensive rear end upgrade, consider purchasing two sets of control arms to replace both upper and lower control arms. This minimizes deflection from the OEM rubber bushings and reduces weight. Please note that on models with Xenon-style headlamps, some modifications to the leveling sensor mounting may be necessary. For additional details, consult your ALTA dealer or our Tech Department.

ALTA Rear Control Arms come with high-quality hardware, including corrosion-resistant spacers and Grade 8 adjustment nuts.