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

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:

Front Control Arms
Front Control Arm Bushings

One of the most common issues with the E46 is that the subframe likes to tear away from the chassis. Fix this by welding in a Rear Subframe reinforcement kit.

• Includes all necessary reinfored metal plates
• Professional installation is required
• Suspension must be realigned after installation

Fits the following BMWs:
1998 - 2006 E46 320i 323i 325i 325xi 328i 330i 323ci 325ci 330ci M3 

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

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 E46 3-series can really benefit from a slightly firmer suspension. The stock shock and spring package is a bit too soft and mushy with a lot of bodyroll. Even the factory sport suspension was a marginal improvement. If you have been left wanting more from your stock suspension, this is the perfect upgrade. In this E46 shock and spring package we paired H&R Sport springs with a set of Bilstein sport shocks and struts to deliver a package with near-stock levels of comfort but with stiffer springs that improve handling and lower the ride height for better aesthetics.

H&R Sport springs lower the ride height by up to 1.4" in front and .75" in the back and stiffens the spring rate. Both combine to lower the car's center of gravity and reduce the amount of bodyroll in corners. The springs are progressive rate so their initial stiffness is actually very compliant and it becomes stiffer as the spring is compressed. This is great for street cars that see bumps and potholes where suspension compliance is key. Overall, they are about 30% stiffer than the stock original springs.

We use Bilstein Sport shocks as the dampers and they feature Bilstein's patented and innovative valving system. With this system, small bumps and impacts are absorbed as they should be. But the shocks stiffen for cornering and other suspension motions. It's the best of both worlds as the shock self-adjusts based on suspension motion. These fit with the stock strut and shock mounts, making for an easy and clean install.

Ride height varies by stock suspension:

E46 standard suspension: F: -1.4: / R: -0.75"
E46 sport suspension: F: -0.75" / R: -0.25"

Parts list:

• 1 set - H&R Sport Springs (29485 or 29484)
• 1 - Bilstein Left Front Sport strut (35-115106)
• 1 - Bilstein Right Front Sport strut (35-115113)
• 1 pair - Bilstein Rear Sport Shocks (24-027250)

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

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:

Front Control Arms
Front Control Arm Bushings
Front Ball Joints

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

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

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:
1999-2006 E46 BMW M3

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

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 M3 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 (33172282484 and 33112282482) - Now is a great time to replace the front rubber-isolated mount. This is another low-wear mount but it can be changed easily, and is a low cost item. The rear mounts are in the aluminum differential cover and BMW only sells them with it. Solid diff mounts are streetable with only a minimal increase in NVH.
• Rear subframe mounts (33312283573, 33312283574, and 33312283419 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:
2001-2006 E46 BMW M3 M3 CSL

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

If you're replacing the struts and shocks on your 325Xi or 330Xi you should also pick up this mount package. As these cars have gotten older, their rubber mounts have deteroriated. If your shocks have gone bad then chances are very good that the mounts need replacing too. The rubber bushings are designed to isolate the chassis from bumps, potholes, and poor roads and give a harsh-free ride and precise handling. But they won't last forever. These mounts and pads are the perfect complement to your new shocks to help restore your car's handling and performance.

This mount package contains all of the commonly replaced rubber mounts and pads for the front and rear shocks on a 1999-2006 E46 325Xi and 330Xi AWD. These are easily installed - there's no additional labor, time, or effort and special tools are not required.

The basic E46 Xi mount package includes:

• Front strut mounts (also known as the guide support)
• Front strut reinforcement plates (to prevent cracking and deforming of the front strut towers)
• Front and rear self-locking mounting nuts
• Rear Lifetime Warranty 'Repair Shop' shock mounts
• Rear shock mount reinforcements (to prevent cracking of shock towers)
• Rear shock mount gaskets

The spring pads, dust boots, and bump stops can be added from the menu below. Note that front bump stops and dust boots are generally not required if you're using Bilstein struts, Bilstein coil overs, H&R coil overs, or KW coil overs. Those struts come with their own front bump stops and boots and may include rear stops and boots as well.

This item fits the following BMWs:
1999-2006 E46 BMW 325xi 330xi