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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:
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
Upgrade your vehicle's performance with our replacement rear lower control arm inner bushings. These bushings feature a low-friction, PTFE-lined spherical bearing, enhancing cornering grip and dynamic geometry. By eliminating OEM bushing deflection and binding, our product preserves camber and toe geometry during bumps. Enjoy improved stability and handling precision, thanks to the maintenance-free FK bearings with PTFE linings. Crafted from high-quality materials including 6061-T6 aluminum and FK PTFE-lined spherical bearings, our bushings ensure durability and NVH reduction. Experience the benefits of enhanced performance and reliability with our premium upgrade.
Key Advantages:
Enhanced Rear Cornering Grip Elimination of OEM Bushing Deflection and Binding Improved Dynamic Geometry, Stability, and Handling Precision Maintenance-Free FK Bearings, Manufactured in the US, with PTFE Linings Materials Used:
6061-T6 Aluminum Bearing Shells and Spacers FK PTFE-Lined Spherical Bearings (F1 Specification, Self-Cleaning)
This product was last offered at the strikethrough price on
06-18-2026
Looking to stiffen up your rear shock mount without going for a solid rear mount? The Polyurethane Rear Performance Strut Mount from IRP will give you the stiffer reinforcement without giving you the typical noise, vibration, and harshness that come with traditional performance strut mounts. The polyurethane also helps with preventing rear shock blowouts, a common problem for stock BMW rear mounts that are paired with stiffer than stock suspension.
The bearing sleeve and poly bushing are built to work with all stock style shocks such as Bilstein and H&R coilover and suspension kits.
Fits the following BMW chassis:
E36 BMW All Submodels except for 318ti
E46 BMW All Submodels
E30 BMW All Submodels
E36 Z3 BMW All Submodels
E85/E86 Z4 BMW All Submodels
These SPL Parts adjustable rear sway bar end links replace OEM part number 33556764428
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.
Aftermarket sway bars and aggressive driving exact a punishing toll on your sway bar end links, often causing them to snap or bend. To combat this, pick up these SPL Pro Adjustable end links that are much stronger than stock and are also allow for adjustments to best suit your suspension configuration. These also allow for you to set or eliminate preload quickly. SPL Pro rear end links utilize Teflon lined 1/2" FK bearings that offer the highest load capacity possible.
Technical specifications:
Fits the following BMWs:
2006-2013 E9X BMW RWD Submodels
2008-2013 E8X BMW All Submodels
**For vehicles with coilover front suspension**
When looking to dial in your steering geometry and alignment for reduced tire where and/or better track handling, the stock suspension is quite limited. To fix this, you can install Camber/Caster plates such as these plates from IRP. Camber/Caster plates allow for adjustment of the top position of the shock's mounting position. These slight adjustments have a huge impact on the stance of the of the wheel when driving straight down the road and when turning into a corner. With simple adjustments, you can increase the grip of the tires in hard turns, improve tread life, or even just make an alignment correction for a vehicle with a lowered ride height.
The IRP Camber Caster plates are made of an aircraft grade aluminum body, for strength and low weight, with an adjustable mounting plate that utilizes a steel monoball mounting point. This makes the plate resistant to corrosion and prevents deformation even with the stiffest shocks and springs.
Features:
Fits the following BMWs:
1991-1999 E36 BMW
**For vehicles with stock style springs**
When looking to dial in your steering geometry and alignment for reduced tire where and/or better track handling, the stock suspension is quite limited. To fix this, you can install Camber/Caster plates such as these plates from IRP. Camber/Caster plates allow for adjustment of the top position of the shock's mounting position. These slight adjustments have a huge impact on the stance of the of the wheel when driving straight down the road and when turning into a corner. With simple adjustments, you can increase the grip of the tires in hard turns, improve tread life, or even just make an alignment correction for a vehicle with a lowered ride height.
The IRP Camber Caster plates are made of an aircraft grade aluminum body, for strength and low weight, with an adjustable mounting plate that utilizes a steel monoball mounting point. This makes the plate resistant to corrosion and prevents deformation even with the stiffest shocks and springs.
Features:
Fits the following BMWs:
1991-1999 E36 BMW
These SPL Parts Adjustable Rear toe arms replace OEM Part number 33322406290
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:
Fits the following BMWs:
2006-2013 E9X BMW RWD Non-M
2008-2013 E8X BMW 128i 135i
These SPL Parts Front Sway Bar End links replace OEM Part numbers 31356765933 and 31356765934
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.
Aftermarket sway bars and aggressive driving exact a punishing toll on your sway bar end links, often causing them to snap or bend. To combat this, pick up these SPL Pro Adjustable end links that are much stronger than stock and are also allow for adjustments to best suit your suspension configuration. These also allow for you to set or eliminate preload quickly. SPL Pro rear end links utilize Teflon lined 1/2" FK bearings that offer the highest load capacity possible.
Technical specifications:
Fits the following BMWs:
2006-2013 E9X BMW RWD Submodels
2008-2013 E8X BMW All Submodels
A strut tower brace adds additional reinforcement to the front strut towers, tying them together for extra rigidity. This makes the whole structure stronger with less chassis flex. Handling and steering feel are improved with better turn-in and input with no downsides.
The IRP adjustable strut brace bar is a high quality brace that is constructed of 100% steel for guaranteed reinforcement and prevention of flex. The brace bar is painted black to ensure corrosion protection and to add to the looks of the engine bay.
Easily installed with basic hand tools.
Fits the following BMW chassis:
E46 BMW All Submodels
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:
Fits the following BMWs:
2006-2013 E9X BMW RWD Sub-Models
2008-2013 E82 BMW All Submodels
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
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.
Upgrade your BMW G8X M3 or M4 with these Rear Upper Arms for superior performance, durability, and ease of adjustment.
**For vehicles with coilover front suspension**
When looking to dial in your steering geometry and alignment for reduced tire where and/or better track handling, the stock suspension is quite limited. To fix this, you can install Camber/Caster plates such as these plates from IRP. Camber/Caster plates allow for adjustment of the top position of the shock's mounting position. These slight adjustments have a huge impact on the stance of the of the wheel when driving straight down the road and when turning into a corner. With simple adjustments, you can increase the grip of the tires in hard turns, improve tread life, or even just make an alignment correction for a vehicle with a lowered ride height.
The IRP Camber Caster plates are made of an aircraft grade aluminum body, for strength and low weight, with an adjustable mounting plate that utilizes a steel monoball mounting point. This makes the plate resistant to corrosion and prevents deformation even with the stiffest shocks and springs.
Features:
Fits the following BMWs:
1999-2006 E46 BMW
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:
Fits the following BMWs:
1992-1999 E36 BMW All Submodels
1999-2006 E46 BMW RWD Models
These SPL Parts Front Lower Street Control arms replace OEM Part numbers 31122405860 and 31122405859
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.
These SPL front lower control arms open up a wide range of adjustment for roll center, camber, and track width adjustment and allow for full articulation with the correct ball joint angle. Instead of using traditional jam nuts, the main arm is slotted to allow the use of pinch bolts and SPL rotating clamps on their exclusive adjuster, making it easier to lock in track width and camber specifications.
*includes headlight adjusting rod
SPL Parts Billet Lower Control/Trailing Arms Feature:
Fits the following BMWs:
2006-2013 E9X BMW RWD Submodels
2008-2013 E82/88 BMW All Submodels
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:
Fits the following BMWs:
2006-2013 E9X BMW M3
2008-2013 E8X BMW 1 M