ECS BMW Drivetrain Parts for BMW E46 M3 S54 (1999-2005)

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Building your perfect BMW is more than just adding horsepower and stiff suspension. Your drivetrain needs attention in order to deliver power effectively. Most BMWs feature comfortable clutch discs, heavy flywheels, long shifter throws, and open differentials. The drivetrain transmits power to the wheels, but can also be a source of power loss when it is designed for comfort rather than performance. Everything on this page will help you improve your power delivery and driving experience by providing custom Limited Slip Differentials, Short Shift Conversions, Performance Clutch Discs, Lightweight Flywheels, and anything else your BMW needs to be the perfect driving experience.

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ECS Brass Clutch Pivot Pin - Many BMWs
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ECS - Corporate Logo
T#:364033
Part#: 013236ECS01A
In Stock
Sale - Save 25% $ 56.99

This product was last offered at the strikethrough price on
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$ 42.74 USD
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This product was last offered at the strikethrough price on
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$ 42.74 USD
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This brass clutch pivot pin is an upgrade over the stock plastic pivot pin. The brass pin will last a lot longer than the plastic piece and may save you time and hassle later on. The original plastic pivot pin is known to fall out, snap, or just wear out over time. At the least you get a very annoying squeak every time you depress the clutch. In a worse case scenario, the clutch fork won't be able to push on the throw-out bearing and your clutch will be useless. The only time to replace the clutch pivot pin is when the transmission is removed, so this brass upgrade can be installed during clutch replacements or a rear main seal service.
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Polyurethane Transmission Mount Set - Street
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T#:381356
Part#: 002705ECS02A
In Stock
$ 117.99 USD
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ECS Tuning's Polyurethane Transmission Mounts are designed to address the vital role of transmission mounts in your vehicle's suspension. The factory mounts are notorious for failures that can result in over-revving, mis-shifts, and in extreme cases, potential chassis damage. Our polyurethane mounts provide a robust solution, engineered for both street and track applications, guaranteeing enhanced performance while eliminating concerns about torn mounts.

Polyurethane stands out with its exceptional toughness, durability, and impressive wear resistance compared to rubber. It also exhibits resistance to water, oil, and grease while retaining its original shape even when subjected to significant compression. By reducing deflection, polyurethane facilitates effective power transfer. While there may be a slight increase in NVH (Noise, Vibration, Harshness), the benefits far outweigh this minor compromise in ride comfort. With a polyurethane durometer of 70A, our street mounts are versatile, offering both daily driving comfort and track durability. For more track-oriented enthusiasts, we provide stiffer mounts with an 80A durometer rating.

For a hassle-free installation, we supply a comprehensive DIY guide. ECS Tuning ensures that you are fully supported from start to finish.

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ECS - Corporate Logo
T#:366828
Part#: 009314ECS01A
In Stock
Sale - Save 25% $ 62.99

This product was last offered at the strikethrough price on
06-13-2026

$ 47.24 USD
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Sale - Save 25%
$ 62.99

This product was last offered at the strikethrough price on
06-13-2026

$ 47.24 USD
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You use a magnetic drain plug for your engine oil, right? Why not apply the same proactive thinking to the differential too? This is a direct replacement magnetic differential drain plug for your BMW. It will catch and retain fine and larger metal particles in your diff oil. If you're proactive in your diff oil servicing, you will catch a minor issue long before it becomes a headache. Diff drain plug includes one sealing o-ring. Direct replacement for Genuine BMW part number(s): 33117525064, 33110308370, 33110152626
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E46, E46 M3, X3 Exact-Fit Stainless Steel Clutch Line
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ECS - Corporate Logo
T#:552465
Part#: 009536ECS01
In Stock
Sale - Save 20% $ 63.99

This product was last offered at the strikethrough price on
06-14-2026

$ 51.19 USD
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Sale - Save 20%
$ 63.99

This product was last offered at the strikethrough price on
06-14-2026

$ 51.19 USD
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This braided stainless steel line replaces the stock hydraulic hose connecting your clutch slave cylinder to the clutch master cylinder. There are several deficiences with rubber, especially as it ages - when new the rubber expands and swells under pressure and the pedal can feel spongy. As rubber ages and is exposed to extreme temperatures the rubber can harden and even shrink (common on brake hoses), which results in a stiff pedal. Rubber clutch lines do not stand up to the stresses of hard use. ECS Exact-Fit stainless reinforced clutch lines provide more confident and dependable shifting by maintaining consistent line pressure, long lasting corrosion resistance, and increased protection from failure. These lines are reinforced with braided stainless steel mesh, affording superior expansion resistance. This resistance to expansion creates a firmer pedal, and a more direct clutch pedal feel. The signature red polymer coating provides additional protection from the elements and abrasion.

This particular stainless steel clutch line fits the following BMWs:
1999-2005 E46 3 Series (all) including 323i, 323Ci, 325i, 325xi, 325Ci, 328i, 328Ci, 330i, 330xi, 330Ci
2001-2006 E46 M3 (manual transmission only, no SMG)
2004-2009 X3 SAV including X3 2.5, X3 3.0

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ECS - Corporate Logo
T#:384201
Part#: 121980ECS01KT
In Stock
Sale - Save 25% $ 36.99

This product was last offered at the strikethrough price on
06-13-2026

$ 27.74 USD
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Sale - Save 25%
$ 36.99

This product was last offered at the strikethrough price on
06-13-2026

$ 27.74 USD
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Some modifications to your vehicle may not produce power to create gains in the overall performance of your driving. When you add a "Po' Boy" clutch stop to your BMW the performance gain is directly felt in the driving experience.

The ECS clutch stop allows the driver to fine tune the position of the clutch pedal to closely match the engagement point for precise, quicker shifting. The adjustment range found in this product can be set to the stock engagement point or can be adjusted to follow the wear of the clutch.  Meaning your new experience will never change all the way to the end of the clutch life and can be reset to enjoy the next clutch.

Note: This modification might require some slight modification to the clutch switch mounting bracket, which can be bent slightly by hand.

 

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ECS - Corporate Logo
T#:583896
Part#: 000920ECS01
In Stock
Sale - Save 25% $ 42.99

This product was last offered at the strikethrough price on
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$ 32.24 USD
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Sale - Save 25%
$ 42.99

This product was last offered at the strikethrough price on
06-14-2026

$ 32.24 USD
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Ensure the longevity of your BMW's drivetrain with ECS Tuning's Magnetic Plugs. These plugs are meticulously engineered in-house to provide a perfect fit and feature a permanent magnet attached to the plug body. The magnet effectively attracts and captures tiny abrasive and ferrous metal particles, preventing their circulation through lubrication systems. Metal particles can accumulate due to various conditions such as normal wear, machining operations, casting flaws, and stress usage, leading to excessive wear of vital components. ECS Tuning's Magnetic Plugs help alleviate this concern by trapping these particles, thus safeguarding the internal components of your drivetrain. With a convenient 17mm hex head design, these plugs eliminate the need for special tools required for OEM plugs.

Key Benefits:

  • Removes abrasive metal particles from drivetrain fluid
  • Prevents excessive wear to internal components
  • Meticulously engineered for a perfect fit
  • Features a permanent magnet for efficient particle capture
  • Convenient 17mm hex head design for easy installation
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ECS - Corporate Logo
T#:363116
Part#: 002447ECS02
In Stock
Sale - Save 25% $ 66.99

This product was last offered at the strikethrough price on
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$ 50.24 USD
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$ 66.99

This product was last offered at the strikethrough price on
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$ 50.24 USD
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Enhance your driving experience with ECS Tuning's Performance Polyurethane Differential Bushings. These meticulously engineered bushings offer a direct connection between your right foot, the engine, and the chassis, making them an essential upgrade.

  • Say goodbye to the softness of factory rubber differential bushings that absorb vibrations and reduce performance.
  • ECS Tuning's polyurethane bushings eliminate the deflection found in factory rubber bushings, resulting in improved power transfer from the differential to the wheels.
  • Experience enhanced throttle control, whether you're navigating a challenging canyon road, drag racing, or simply commuting.

Unlike delrin or solid differential mounts, these bushings deliver improved performance without introducing harshness or excessive vibration.

Crafted from durable 88A durometer polyurethane and enhanced with a black anodized 6061-T6 aluminum sleeve.

Resistant to chemicals, ozone degradation, road salt, and general wear and tear, ensuring a longer service life.

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Teflon Shifter Carrier Bushings
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ECS - Corporate Logo
T#:388077
Part#: 25117507695T
In Stock
Sale - Save 25% $ 73.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 55.48 USD
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Sale - Save 25%
$ 73.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 55.48 USD
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Shifter slop is a common complaint among all BMW models. Some of that play comes from the bushings where the shifter carrier mounts to the transmission. The original rubber carrier bushings don't last very long and when they get too soft the shifter flops around. These Teflon bushings are not as stiff as Delrin so they won't transmit as much vibration and buzz in the shifter. Yet Teflon will last much longer than the factory rubber, giving you precise shifting for many years.

Note: this is only one part of the shift linkage and there may be other components that need replacing to improve shifting feel.

We advise getting a replacement bushing carrier pin as well. If the original rubber bushings are worn the pin will have wear too and you will still have slop in the shifter, even with the new bushings.

These are the OVAL shifter carrier bushings (some BMW models have round bushings).

This item fits the following BMWs:
1992-1998 E36 BMW 328i 328is 328ic M3
1999-2002 E46 BMW 328i 328ci 330i 330ci
2001-2006 E46 BMW M3
1997-2003 E39 BMW 540i M5
1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Roadster
1999-2003 E52 BMW Z8

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BMW E46 M3 Teflon Shifter Bushing Kit
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:369437
Part#: 2511-002
In Stock
Sale - Save 25% $ 78.99

This product was last offered at the strikethrough price on
06-13-2026

$ 59.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 78.99

This product was last offered at the strikethrough price on
06-13-2026

$ 59.24 USD
Free Shipping on orders $49 and up

Enhance the shifting experience of your BMW E46 M3 with the BMW E46 M3 Teflon Shifter Bushing Kit. This high-quality bushing kit is designed to reduce play and improve precision in the shifter mechanism, resulting in smoother and more accurate shifts. Engineered specifically for BMW E46 M3 models, this kit offers easy installation and durable performance. Upgrade your BMW's shifting performance with this premium Teflon shifter bushing kit.

  • Reduces play in the shifter mechanism
  • Improves shifting precision for smoother and more accurate shifts
  • Engineered specifically for BMW E46 M3 models
  • Easy installation for convenient upgrade
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