AST Lowering Springs UK
AST lowering springs are one of the simplest and most effective handling upgrades you can make. Designed to work with your car's factory dampers, AST springs lower your ride height for a lower centre of gravity, reduced body roll and sharper steering response, while keeping the ride comfortable enough for everyday road use. They also close up the arch gap for a more purposeful stance. As an official UK AST dealer, String Theory Garage supplies genuine AST springs with expert advice and fitting.
AST Lowering Spring Features
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Comfort-focused spring rates – around 15% stiffer than OEM, softer than many competitor springs for a more comfortable ride.
- Developed and tested to work with OEM dampers.
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Progressive design for compliance over bumps and control when cornering.
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Lowering from 20–60mm depending on model.
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Cold coiled in the Netherlands on Wafios machines.
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Lifetime warranty against breakage.
AST Lowering Springs for BMW
Our AST lowering spring range is tailored to BMW's most popular performance models, including the BMW M135i & M140i (F20 / F21) in rear-wheel drive and xDrive form, the BMW M135i xDrive (F40), the BMW M235i & M240i Coupe (F22) including M240i xDrive, the BMW M235i & M240i Convertible (F23) and the BMW M2 & M2 Competition (F87).
Lowering Springs or Coilovers?
Lowering springs are ideal if you want better handling and a sportier look without the cost of a full suspension kit. If you want to adjust damping or set your own ride height, take a look at our AST height adjustable lowering springs and AST coilovers.
Fitting & Alignment at String Theory Garage
String Theory Garage are suspension and chassis setup specialists. As an official AST dealer, we supply AST lowering springs across the UK and offer full fitting with geometry alignment at our garage in Stratford upon Avon, so your car is set up correctly after lowering.
Browse our AST lowering springs below.
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