BMW Suspension Parts for BMW 3 Series E46 (1999-2005)

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

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

This kit is contains all new strut and shock mounts and hardware needed when installing a new shocks and struts or aftermarket suspension on your vehicle. 

Fits the following BMW's

E46 M3 Coupe 

This kit is contains all new strut and shock mounts and hardware needed when installing a aftermarket suspension on your vehicle. 

Fits the following BMW's

E46 323ci 323i 325ci 325i 325xi 328ci 328i 330ci 330i 330xi 

**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:

• Decreased understeer
• Decreases outside edge tire wear
• Aircraft Grade Aluminum Construction
• Steel Monoball and Mounting Sleeves

Fits the following BMWs:
1999-2006 E46 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:

• Decreased understeer
• Decreases outside edge tire wear
• Aircraft Grade Aluminum Construction
• Steel Monoball and Mounting Sleeves

Fits the following BMWs:
1999-2006 E46 BMW

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.

Easily installed with basic hand tools.

*Does not fit convertible chassis"

Fits the following BMW chassis:
E46 BMW All Submodels

The perfect upgrade for any E46, this finned differential cover increases cooling to the rear differential to prevent over heating and possible damage. This is a complete kit including fluid and drain plugs.

Includes the following

• Aluminum finned differential cover
• Drain & fill plug with sealing o-ring
• 2 Quarts of Redline 75w90

Want the best performance option in shock tower mounts? IRP has created their pillow-ball rear shock mounts for just this need. These rear shock mounts are designed for use on the track and racing. This set of mounts will help your rear shocks perform the best they can in all conditions. The advantage to using a mount with spherical bearing is that it allows the shock to freely move off axis without side loading the shock shaft like rubber or polyurethane mounts do. Side loading a shock increases stiction and wear which decreases its efficiency. Because these are mounts without an isolator (rubber or polyurethane) to dampen road noise and vibrations we do not recommend them for street cars.

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

Eliminate the most common sources of suspension slop with our all new Turner Suspension Refresh Kits that feature only OEM parts! We do not include any "cheap parts" in our refresh kits to ensure long-lasting reliability and noise-free suspension.

This Level 3 kit replaces:

Control Arms & Bushings
Powerflex Performance Polyurethane Control Arm Bushings
Outer Tie Rods
Sway Bar End Links
Upper Strut Mounts & Reinforcement Plates
New Hardware

This package allows you to build your own rear bushing package to cover the parts you want to replace. As these cars age, they require a number of suspension bushings to be replaced. Bushing replacement not only keeps the car in its top form, it also makes the car safer. Depending on the work, it may be logical to replace all of the bushings in the rear suspension (there are 19 total). This is especially true if you are pulling the subframe out to do the floor reinforcement or if you're doing a diff install. Turner Motorsport is a big believer in using rubber bushings for street cars (with the exception of solid subframe mounts, see further below). Urethanes, Delrin, or aluminum are generally good for reducing compliance and limiting deflection - attributes that don't really work well on roads filled with potholes, railroad crossings, cracks, and expansion joints. The rubber bushings maintain the factory ride/handling traits that won the E46 praise all over the world. Every bushing will need maintenance or replacement at some point and rubber has proven to last the longest and need less maintenance than anything else, even urethane. And unless competitive driving is your goal, the harder materials are only a gimmick.

Any major overhaul of the rear suspension should include new subframe mounts. The worn rubber mounts contribute to rear subframe-floor failure when the deflection in the mount is transferred to the chassis. Rubber mounts are only OK for street cars that don't see aggressive driving, autocross, or track use. For any enthusiastic driving, we strongly recommend our solid aluminum subframe mounts even on the street. They have zero deflection and will not contribute to rear floor failures. And if you leave rubber in the rest of the suspension your ride comfort will not suffer.

Individual Item Descriptions:

• Trailing Arm Bushings and Limiters (33322228153 and TSU9990001) - our OEM rubber replacement trailing arm bushings (RTABs) are a perfect fit and help maintain rear toe alignment. The Limiters prevent premature bushing wear.
• Rear Inner Control Arm Bushings (upper 33321092247 and lower 33326770824) - new stock inner rubber bushings for the upper spring arm and the lower camber arm. These do not wear out very quickly but should be replaced as a 'While you're in there...' job.
• Rear Outer Control Arm Bushings (upper and lower) (33326775551) - new stock outer ball joints for the upper spring arm and the lower camber arm. These are the standard ball joint design and last a very long time. Check for play with a pry bar and replace as needed.
• Rear Shock Mounts - Choose from several types of RSM upgrades. If your mounts have not been replaced in the last 40,000 miles, now is the perfect time. Skip this option if you recently replaced mounts or already have an upgraded mount.
• Differential mounts (33176770788 and 33176751808) - Now is a great time to replace the rubber-isolated mounts. This is another low-wear mount but it can be changed easily, and is a low cost item. Solid diff mounts are streetable with only a minimal increase in NVH.
• Rear subframe mounts (33316770783, 33316770784, 33316770781 x 2) - The heart of the rear suspension, the subframe (or carrier) mounts located the entire rear suspension to the car. There are four mounts in total and bolt up into the rear floor. Worn subframe mounts are one of the leading contributors to rear floor-subframe failure. As the mounts flex, so does the sheetmetal of the chassis, which will fatigue the sheetmetal and crack the spot welds. Therefore, replacement of the subframe mounts is critical and a must when doing the subframe reinforcement or repair. Solid aluminum mounts are streetable with no increase in NVH.

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi

This package covers the front control arms and bushings on the 2001-2005 E46 325Xi and 330Xi. These cars use a unique front suspension but the principle design and downside, is the same as almost all of the BMW 3-series since 1984. The inner and outer ball joints see a lot of wear as they are constantly in motion. With the heavy front end of the 4WD Xi, these components need frequent inspection and replacement. When the bushings and ball joints fail, the front end can shimmy and feel loose through the steering wheel. Excess play in the rubber bushings can cause alignment problems and sloppy steering. There is usually a knocking or clunking sound to further annoy you. We've assembled thispackage to replace everything on both front control arms and restore your BMW's exceptional driving dynamics. All parts are OEM Boge, Lemforder, or Original BMW to maintain the highest quality standard.

This kit includes the following parts:

• LEFT FRONT CONTROL ARM, part# 31126758533 / 31 12 6 758 533
• RIGHT FRONT CONTROL ARM, part# 31126758534 / 31 12 6 758 534
• CONTROL ARM BUSHINGS (pair), part# 31129063163 / 31 12 9 063 163
• LEFT FRONT INNER BALL JOINT, part# 31126756695 / 31 12 6 756 695
• RIGHT FRONT INNER BALL JOINT, part# 31126756696 / 31 12 6 756 696

Eliminate the most common sources of suspension slop with our all new Turner Suspension Refresh Kits that feature only OEM parts! We do not include any "cheap parts" in our refresh kits to ensure long-lasting reliability and noise-free suspension.

This Level 1 kit replaces:

Rear Trailing Arm Ball Joint
Rear Control Arm Bushings
Rear Reinforcement Plate
Rear Shock Mounts & Gaskets
New Hardware