BMW Suspension Parts for BMW E46 M3 S54 (1999-2005)

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Your BMW's handling is determined by the capabilities and age of your suspension components. Our selected aftermarket performance suspension like coilovers, lowering springs, cup kits, and dampers can improve the handling of your BMW dramatically. With those upgrades comes the needs for proper adjustment; our recommended supporting modifications comes stiffer sway bars, bushings, and adjustable camber/caster plates, to name a few found on this page. Completely build your suspension for the most competitive BMW driving experience, achieve your perfect look, or simply replace your worn suspension with our recommended parts.

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TC Kline Single Adjustable Street/Track Coilover Kit - E46 non-Xi ...
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TC Kline Racing - Corporate Logo
T#:594671
Part#: TCKE46SINGLEKIT
Ships in 1 Business Day
$ 2,554.99 USD
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$ 2,554.99 USD
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Lifetime warranty on street driven cars! TC Kline's coilover kits feature proprietary TC Kline Racing Koni dampers, camber plates, and recommended, track proven spring rates. This kit includes 400#F/500#R springs .
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E46 TCKR Single Adjustable Coilover Kit - FS 550# - RS 600# - Monobal...
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TC Kline Racing - Corporate Logo
T#:16175672
Part#: TCKE46SINGLE5506
Ships in 2 Business Days
$ 2,554.99 USD
$ 2,554.99 USD
Proven on the street and track, TC Kline's system is unmatched by any other system on the market. Their unique Smart Shock technology mated with our VVS alloy springs makes this ride height-adjustable kit the most versatile available. Incorporating separate external compression and rebound adjusters, the shocks can be dialed from street comfort to a full race setup in minutes.
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TC Kline Double Adjustable Street/Track Coilover Kit - E46 RWD ...
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TC Kline Racing - Corporate Logo
T#:594687
Part#: TCKE46DBLKIT
Ships in 6 Business Days
$ 3,514.99 USD
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$ 3,514.99 USD
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Lifetime warranty on street driven cars! TC Kline's coilover kits feature proprietary TC Kline Racing Koni dampers, camber plates, and recommended, track proven spring rates. This kit includes 400#F/500#R springs .
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Rear Shock Mounts (RSM) HP Aluminum/Rubber - E30, E36, E46, Z3, Z4 (P...
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JT Design - Corporate Logo
T#:3666
Part#: JTD909
Ships in 3 Business Days
$ 99.99 USD
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$ 99.99 USD
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Made in the USA These are the best rear shock mounts that we have found for the E30, E36, E46, Z3 & E85 Z4! Featuring CNC-machined billet aluminum mounting base with a replaceable urethane bushing (replacement bushings are just $15 and are changed in minutes!). These mounts are excellent for either street or track because of their low NVH (noise, vibration, and harshness). Plus, the superior design will far outlast the life of stock mounts - maybe even the car itself. You'll never think twice about your shock mounts again! These shock mounts are a direct replacement of the stock mounts so they fit all shocks with the BMW-standard 10mm shock shaft, including all factory and OEM shocks (Boge, Sachs, etc), H&R coil overs, Bilstein shocks and PSS, PSS9, PSS10 coil overs (except the B16 Ride Control Kit). This is sold as a package with new shock mount gaskets, washers, and Nyloc nuts.

Must re-use factory cupped washers!

This item fits the following BMWs:
1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
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Rogue Engineering Rear Shock Mount (E30/E36/E46) - Standard 10mm Shoc...
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Rogue Engineering - Corporate Logo
T#:656138
Part#: RSMNONONO
Ships in 8 Business Days
$ 109.00 USD
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$ 109.00 USD
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RACEBRACE Strut Brace - 6 Cylinder E46 M3/3-Series
For model year 2002+ only
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Rogue Engineering - Corporate Logo
T#:50837389
Part#: RE.RBE46
Ships in 4 Business Days
New Item
$ 379.00 USD
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$ 379.00 USD
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Reinforces the strut towers against deformation while adding valuable triangulation to the front end for sharper, more predictable handling. Designed to prevent “mushrooming” and other distortion caused by rough roads or stiff suspension setups, these plates help maintain consistent suspension geometry by reducing unwanted chassis flex. The result? A more stable, confidence-inspiring front end under load. Strut tower plates are engineered to sit perfectly flush against the towers. If they don’t, it’s a sign the towers have experienced some deformation. In minor cases, this can often be corrected using a block of wood and a hammer to carefully restore the mounting surface.
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Rogue Engineering V-Brace Chassis Support - E46 M3
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Rogue Engineering - Corporate Logo
T#:12643107
Part#: RE.899
Ships in 9 Business Days
$ 595.00 USD
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An integral part on E46 M3 is the rear chassis "V-Brace" (BMW # 33312229899) found on all 2001-06 Convertibles and Coupe (including the CSL). This brace attaches to the outward points of the rear chassis and to the area near the rear subframe carrier. Since some of these vehicles are now over 20 years old, we have been seeing more and more of these start to rust away. We began studying the OEM part, curious as to why they were starting to rust away. We found that the two arms of the "V" are made from 38mm x 12mm (1.5" x 0.5") hollow square steel tubing, pressed ends and welded to a junction plate joining them with welds holding the arms at a specific angle. Since the arms are hollow, it helps keep the overall weight down, but does little to prevent corrosion since it is difficult to paint/coat a hollow tube. A Google search turned up very little other than used ones on eBay and new ones that turned out to be in short supply from the BMW dealer (not surprising since the car is over 20 years old). Determined to make something better, we began our engineering and R&D process. Goals of our Design; Modular design, since packaging and shipping something this large would probably be too expensive Costs would dictate material and manufacturing methods Lighter weight would be a secondary (or tertiary) goal, but also keeping in mind costs Corrosion resistant, so it would not rust from the inside out, like the OEM version After weighing the material, manufacturing and cost options, we decided to go with a fully CNC'd ACQ 6061-T6 aluminum assembly. The concept is to machine two identical arms (one part number) and have them joined with a "junction plate". The arms would be secured to the plate with Grade 8.8 grade hardware and the entire assembly would include replacement Grade 10.9 hardware to replace the original OEM hardware (which is probably original). Details of our Design; CNC'd 6061-T6 construction, secured with Grade 8.8 socket head cap screws. Included are replacement Grade 10.9 hardware to fit in the factory locations. About 4 lbs. fully assembled weight (vs. 6.25 lbs for OEM), about a 35% weight savings Anodized gray finish Modular design allows for one arm to be removed in case of exhaust removal requirement. Included in the Kit Two (2) arms of the brace assembly (they are idential) One (1) junction plate One (1) red spacer (this goes BETWEEN the brace and the chassis!) Two (2) blue spacers (these goes BETWEEN the brace and the chassis!) Four (4), M10 socket head cap screws Three (3), M10 flanged hex head bolts It is recommended that the holes used to mount the V-brace onto the car be cleaned before installation by running an M10x1.5 tap to clean each of the holes.
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Replacement Bushings for Rear Shock Tower Mounts
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JT Design - Corporate Logo
T#:1386
Part#: JTD909-75-KIT
Ships on Jul 28, 2026
$ 32.00 USD
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The bushings in the Aluminum Rear Shock Tower Mounts (#JTD909) and the Repair Shop Rear Shock Mounts (#JRDRP) are replacable. Simply disassemble the shocks and mounts, replace the bushings, and reassemble. On the JTD909 the shock mount doesn't even have to be removed from the chassis. This set includes enough bushings to replace bushings on both the left and right mounts (4 total).
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TC Kline Racing Camber Caster Plates - E46
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TC Kline Racing - Corporate Logo
T#:401265
Part#: TCKE46CAMPLATE
Ships in 2 Business Days
$ 489.00 USD
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$ 489.00 USD
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Made from aircraft grade aluminium, with stainless steels strut inserts and hardware for the ultimate in durability for street or track use. The built in reinforcement plate reduces the stress on the shock tower to reduce the chance of the shock towers tearing. With a maximum adjustment rang of -1.5 degrees camber per side, these plates will allow you to get your suspension right where you need it. 

Fits the following BMW's:
1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3

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Rogue Engineering Adjustable Rear Control Arms
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Rogue Engineering - Corporate Logo
T#:34885415
Part#: RE.ARCA.2.RE
Ships in 8 Business Days
$ 395.00 USD
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