SKU: ASTLS-14-400
AST 06/2012-07/2019 BMW 3 Lowering Springs – 40mm/35mm
AST Lowering Springs lower the center of gravity on 2012-2019 BMW 3 Series F30 sedan F31 touring and F34 GT models by 40mm front and 35mm rear. These direct OEM replacements maintain familiar ride comfort while sharpening handling and cornering response through progressive spring rates. Vehicle-specific design ensures precise fitment on models including 320i 328i 330i 335i and diesel variants.
Key Features
- Progressive Spring Design: Delivers balanced lowering with controlled rebound for daily driving comfort and track-ready performance.
- Premium Materials: High-tensile steel coiled on Wafios machines for durability and corrosion resistance.
- Vehicle-Specific Engineering: Tailored rates and dimensions match BMW 3 Series suspension geometry for factory-like alignment.
- Direct OEM Replacement: Bolt-on installation swaps stock springs without additional modifications.
- Lifetime Warranty: Guaranteed against breakage for long-term reliability on the road or track.
Product Notes
- Pair with camber plates for optimal alignment after install.
- Inspect bushings and shocks before installation for best results.
- Special order item expect 3-5 business days processing before shipping.
Installation Notes
- Professional installation recommended.
- Requires spring compressor tool and 4-post lift for safety.
- Compatible with OEM or aftermarket shocks no additional hardware needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2019 | BMW | 3 Series | Sedan (F30) 320i 328i 330i 335i |
| 2013-2019 | BMW | 3 Series | Touring (F31) 320i 328i 330i |
| 2014-2019 | BMW | 3 Series | Gran Turismo (F34) 328i 330i 335i |
| 06/2012-2019 | BMW | 3 Series | F30/F31 LCI models all trims |
Why Choose AST?
- Proven across 3000+ vehicle models from 1966 to 2023.
- Wafios precision coiling ensures consistent rates and longevity.
- Progressive technology balances drop height with ride quality.
Frequently Asked Questions
- Q: Will these fit my 335i xDrive F30?
A: Yes fits all rear-wheel and xDrive variants on listed F30 F31 F34 chassis from 06/2012-07/2019. - Q: What material are the springs made from?
A: High-tensile chrome-silicon steel with shot-peened and heat-treated finish for strength and fatigue resistance. - Q: What does the lifetime warranty cover?
A: Full coverage against manufacturing defects and breakage under normal use no expiration.
Shipping & Handling
- Method: UPS Ground or FedEx standard freight.
- Availability: In stock – ships same or next business day
- Packaging: Secure box 20 x 10 x 8 inches.
- Weight: 25.4 lbs.
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