SKU: ASTLS-14-473
AST 04/2009-01/2018 BMW Z4 Lowering Springs – 30mm/25mm
AST Lowering Springs lower the center of gravity on 2009-2018 BMW Z4 models by 30mm front and 25mm rear while maintaining OEM ride comfort. These direct OEM replacements are developed specifically for each Z4 variant including sDrive28i and sDrive35i. Progressive spring design delivers improved handling and stance without sacrificing daily drivability.
Key Features
- Precise Lowering: 30mm front and 25mm rear drop enhances cornering stability and aggressive road stance on BMW Z4 E89 chassis
- Progressive Spring Rates: Balances firmness for performance driving with compliance for everyday roads preserving OEM comfort levels
- Premium Construction: Crafted from high-tensile chrome silicon steel using Wafios coiling machines for durability and consistent performance
- Vehicle-Specific Engineering: Custom-tuned for BMW Z4 models ensuring perfect fit and optimized ride height across submodels
- Lifetime Warranty: Backed against breaking or sagging for long-term reliability on the road or track
Product Notes
- Direct bolt-on replacement for factory springs no modifications required
- Pair with OEM or aftermarket shocks for best results
- Packaged securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Complete front and rear suspension service including alignment after install
- Fully compatible with OEM struts shocks and control arms
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2009-2016 | BMW | Z4 | sDrive23i |
| 2010-2011 | BMW | Z4 | sDrive25i |
| 2012-2016 | BMW | Z4 | sDrive28i |
| 2009-2011 | BMW | Z4 | sDrive30i |
| 2009-2016 | BMW | Z4 | sDrive35i |
| 2011-2016 | BMW | Z4 | sDrive35is |
Why Choose AST?
- Proven across 3000 vehicle models from 1966 to 2023
- High-quality materials coiled on advanced Wafios machines
- Vehicle-specific development for exact fit and performance
Frequently Asked Questions
- Q: Will these fit my 2012-2016 BMW Z4 sDrive28i?
A: Yes fits all E89 Z4 models from 2009-2016 including sDrive28i sDrive35i and variants as direct OEM replacements - Q: What material are the springs made from?
A: High-tensile chrome silicon steel cold-wound on precision Wafios machines for strength and fatigue resistance - Q: What does the warranty cover?
A: Lifetime warranty against breaking or sagging under normal use contact manufacturer for claims
Shipping & Handling
- Method: UPS Ground
- Availability: In stock – ships same or next business day
- Packaging: Sturdy cardboard box 20 x 10 x 6 inches
- Weight: 24 lbs
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