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Audi B9 A4/S4 A5/S5 RS5 Front Adjustable Sway Bar

Reduce body roll and enhance handling!
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ECS Part #
$249.95 (Sale - Save 15%)
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Product Details

If you’re looking to improve the handling of your Audi B9, this is the best place to start! These cars have a lot more body roll than desired, and the stock sway bars don't quite do enough for most owners to be satisfied. Engineered, designed, and tested in-house at ECS Tuning, you know these sway bars are built to last with the highest quality.

Larger diameter sway bars have a higher torsional spring rate which helps resist excessive body roll. By eliminating the excessive body roll and changing the stiffness of the sway bars front to rear, we can improve handling characteristics by reducing understeer and keep the tire in full contact with the ground.  By upgrading to the ECS Tuning Adjustable Front Sway Bar, you will experience less body roll, and a massive improvement to the handling characteristics of your vehicle, with virtually no sacrifice in ride quality. 

In our testing with both bars installed, we found up to a 1.5° reduction in body roll!  Testing shows a significant and consistent increase in slalom speed of approximately 2 mph. On average there was a gain of ~0.5 seconds through the ~4.5 second total slalom run time. The slalom testing consisted of 5 gates spread 50’ apart. The increased stiffness gives the car a much more stable feel and allows the driver to stay consistent and in control.

The sway bars are also adjustable, and allow for a “softer” setting, or a “stiffer” setting, depending on your driving preferences.


Adjustable Front Sway Bar: 

  • Design:

    • 1.25” (31.75mm) OD, 0.120” (3.05mm) wall DOM (hollow) tubing

    • Black powder coated for corrosion resistance

    • 80A Durometer custom polyurethane greasable bushings - reduces flex at mount as compared to OEM rubber

    • Grooved bushing inside diameter for improved grease retention

    • Black anodized 6061-T6 billet brackets with check valve grease port

    • Fully reversible back to factory components

  • Performance:

    • 58% stiffness increase on “soft” setting

    • 68% stiffness increase on “stiff” setting

    • Reduced body roll without excessive change in dynamic F/R balance

    • Increased cornering speed and response time

    • Works in unison with ECS 22mm rear sway bar

    • Testing has shown up to a 1.5° reduction in body roll when both bars are installed

    • Recommended use with ECS adjustable front sway bar end links

*All testing shown was completed with both front and rear sway bars installed. 

This Part Fits the Following Vehicles

Make Model Submodel Engine
Audi B9 A4 FWD 2.0T
Audi B9 A4 Quattro 2.0T
Audi B9 A5 Quattro 2.0T
Audi B9 A5 Quattro 2.0T Sportback
Audi B9 RS5 Quattro 2.9T
Audi B9 S4 Quattro 3.0T
Audi B9 S5 Quattro 3.0T
Audi B9 S5 Quattro 3.0T Sportback
Audi B9 S5 Quattro 3.0T Cabriolet
*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.

Kit Contents

Description Brand Qty
Zinc-Plated Steel Grease Fitting Straight, M6 X 1 Mm Male, 14 Mm Overall Length Bremmen Parts - Corporate Logo 2
B9 A4/S4 Front Sway Bar ECS - Corporate Logo 1
B9 A4/S4 Front Sway Bar Bushings ECS - Corporate Logo 2
B9 A4/S4 Front Sway Bar Bushing Mounts W/Grease Fittings ECS - Corporate Logo 1
Grease Fitting Dust Cap, 1" Overall Length, Black Bremmen Parts - Corporate Logo 2

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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