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Win this M240i!
Every $50 spent = 1 entry*

No purchase necessary to enter or win. See official rules.

Performance Rear Trailing arm Set

Stronger. Lighter. Better looking. Designed to withstand the abuse of the road.
Mfg Part #
ECS Part #
$263.95 (Sale - Save 3%)
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Availability: In Stock
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Product Details

Factory steel rear trailing arms flex, causing undesired suspension geometry changes under load. Metal fatigue combined with shock forces from a pothole or curb, have been shown in some cases to cause the arm to buckle, turning a pleasant drive into a visit by roadside assistance.

ECS Tuning's Performance Rear Trailing Arm Set is an upgrade that has been engineered to address these issues, while also being lighter and more attractive than the factory steel component. Subjected to thousands of hard testing miles and countless computer simulations, these arms are engineered to be the last rear trailing arms you'll ever need. An all-around stiffer design exhibiting virtually no flex means more confident handling with no unintended geometry changes (the same can't be said for the factory arms). Despite being lighter than the arms your car has now, these control arms offer greater strength, meaning even after years of abuse they will still provide peace of mind (which also can't be said for factory arms).

A perfect upgrade for your rear suspension.

Product features:

  • Constructed from solid 6061-T6 aluminum
  • Anodized for corrosion resistance
  • Increased strength versus the factory steel arm - this arm fears no pot holes
  • 25% lighter (384 grams versus 517 grams each)
  • Easy to install upgrade for the home mechanic - will not affect alignment settings

Whether it's the first suspension modification you make, or the last component you've been searching for, ECS Tuning offers the ultimate upgrade for factory rear trailing arms.

Torque for bolt is 74 FT LBSĀ 

Cross Reference
  • 33326763477, 33322406291

This Part Fits the Following Vehicles

Make Model Submodel Engine
BMW E82 1 M Coupe N54 3.0L
BMW E82 128i N52 3.0L
BMW E82 135i N54 3.0L
BMW E82 135i N55 3.0L
BMW E84 X1 sDrive28i N20 2.0L
BMW E84 X1 xDrive28i N20 2.0L
BMW E84 X1 xDrive35i N55 3.0L
BMW E88 128i N52 3.0L
BMW E88 135i N54 3.0L
BMW E88 135i N55 3.0L
BMW E90 325i N52 3.0L
BMW E90 325xi N52 3.0L
BMW E90 328i N52 3.0L
BMW E90 328xi N52 3.0L
BMW E90 330i N52 3.0L
BMW E90 330xi N52 3.0L
BMW E90 335d M57 3.0L
BMW E90 335i N54 3.0L
BMW E90 335i N55 3.0L
BMW E90 335xi N54 3.0L
BMW E90 335xi N55 3.0L
BMW E90 M3 S65 4.0L
BMW E91 325i N52 3.0L
BMW E91 325xi N52 3.0L
BMW E91 328i N52 3.0L
BMW E91 328xi N52 3.0L
BMW E92 328i N52 3.0L
BMW E92 328xi N52 3.0L
BMW E92 335i N54 3.0L
BMW E92 335i N55 3.0L
BMW E92 335is N54 3.0L
BMW E92 335xi N54 3.0L
BMW E92 335xi N55 3.0L
BMW E92 M3 S65 4.0L
BMW E93 328i N52 3.0L
BMW E93 335i N54 3.0L
BMW E93 335i N55 3.0L
BMW E93 335is N54 3.0L
BMW E93 M3 S65 4.0L
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.


ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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