034 Motorsport Dynamic+ Sway Bar Kits — BMW F2X / F3X Chassis
034 Motorsport Dynamic+ matched front and rear sway bars for the BMW F2X / F3X chassis. Front bar 3-way adjustable, 30mm hollow, up to +85% stiffer; rear bar 2-way adjustable, 22mm spring steel, up to +390% stiffer. Available rear-only, front-only, or as a balanced bundle. Front-bar configurations are RWD only (not xDrive compatible).
or as low as $27.33/mo with Affirm
034 Motorsport · Dynamic+ Series
Track-Proven Sway Bar Geometry For The F2X / F3X Platform
Perfectly-matched front and rear bars in high-quality spring steel — engineered to reduce body roll, sharpen turn-in, dial out understeer, and put the chassis exactly where you point it. Validated on the street and at the track on 034Motorsport’s own F30 340i development car.
Why It Matters: Stock M Sport sway bars are a compromise — soft enough that BMW can ship cars to every market without complaint, stiff enough to feel “sporty” in a brochure. The Dynamic+ Front Bar is up to 85% stiffer than the stock 340i Msport bar; the Dynamic+ Rear is up to 390% stiffer. That’s the difference between rolling onto the outside front tire mid-corner and feeling the chassis pivot cleanly around its center of mass.
Three Configurations
Oversteer-Bias Setup
Pair the 034 rear bar with the OEM front for a looser, more rotational chassis. Reduces body roll, kills understeer, sharpens turn-in. xDrive (AWD) compatible.
- 2-way adjustable
- 22mm spring-steel bar
- Up to 390% stiffer than M Sport stock
Understeer-Bias Setup
034 front bar with the OEM rear creates a more stable, predictable chassis — pushes the limit of grip up in the front and reduces oversteer tendencies. RWD only.
- 3-way adjustable (Soft / Mid / Stiff)
- 30mm hollow design with thicker walls
- Up to 85% stiffer than M Sport stock
Full Balance Kit
The full Dynamic+ matched set. Maximum adjustability to dial in the exact balance you want — aggressive turn-in up front, controlled rotation at the rear. RWD only.
- Front + Rear bars matched & validated together
- 3-way front + 2-way rear adjustment
- Save vs. buying separately
Front Bar — 3-Way Adjustable, 30mm Hollow
- Adjustment
- 3-position end link mounting (Soft / Mid / Stiff)
- Diameter
- 30mm
- Construction
- Hollow with thicker walls vs. factory bar
- Soft setting
- +62% stiffer than 340i M Sport
- Mid setting
- +72% stiffer than 340i M Sport
- Stiff setting
- +85% stiffer than 340i M Sport
- Finish
- Black powder coating
Rear Bar — 2-Way Adjustable, 22mm Solid
- Adjustment
- 2-position end link mounting (Soft / Stiff)
- Diameter
- 22mm
- Construction
- One-piece solid spring steel
- Soft setting
- +315% stiffer than 340i M Sport
- Stiff setting
- +390% stiffer than 340i M Sport
- Finish
- Black powder coating
Confidence-Inspiring Handling, Dyno-Validated
Fitment
| Make | Model | Years | Chassis | Engine |
|---|---|---|---|---|
| BMW | 228i | 2014–2020 | F2X | N20 2.0L |
| BMW | 230i | 2014–2020 | F2X | B48 2.0L |
| BMW | 320i | 2012–2019 | F30 | N20 / B48 2.0L |
| BMW | 328i | 2012–2019 | F30 | N20 2.0L |
| BMW | 330i | 2012–2019 | F30 | B48 2.0L |
| BMW | 335i | 2012–2019 | F30 | N55 3.0L |
| BMW | 340i | 2012–2019 | F30 | B58 3.0L |
| BMW | 420i / 428i | 2014–2019 | F32 | N20 2.0L |
| BMW | 430i | 2014–2019 | F32 | B48 2.0L |
| BMW | 435i | 2014–2019 | F32 | N55 3.0L |
| BMW | 440i | 2014–2019 | F32 | B58 3.0L |
| BMW | M235i | 2014–2020 | F2X | N55 3.0L |
| BMW | M240i | 2014–2020 | F2X | B58 3.0L |
xDrive (AWD) Note: Configurations containing the front sway bar (Front Sway Bar Only & Front + Rear Bundle) are NOT compatible with xDrive (AWD) models. RWD only. The Rear Sway Bar Only kit fits both RWD and xDrive cars.
NVH & Install
- Install Effort
- Mild — standard hand tools, ~3-4 hr DIY for the bundle
- NVH Transfer
- None to Low (subject to driver feedback)
- Maintenance
- Lubricate sway bar bushings every ~6 months for safe upkeep
- Warranty
- 034 Motorsport limited lifetime on the bar; 1 year on bushings & hardware
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