
Next Day delivery (1-2 days)
Next Working day delivery are sent by DPD Courier company for main land UK deliveries which is normally next working day (which does not include Saturday/Sunday or Bank Holidays).
Orders need to be placed before 3pm to qualify for next working day delivery.
We also offer a 2-3 working day service by Royal Mail (Priced at £5.99) as well.
Northern Ireland, the Isles and some Scottish postcodes are charged more and delivery could take longer.
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What parts are required to fit this product in your vehicle
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What parts are required to fit this product in your vehicle
Improve the ride quality and suspension performance of your lowered vehicle with Density Line Performance Bump Stops. Specifically engineered for lowered suspension setups, these bump stops restore usable suspension travel while improving handling, comfort, and chassis stability.
Lowering a vehicle reduces the available suspension travel, causing the factory bump stops to engage much earlier than intended. Instead of acting as a safety cushion during extreme suspension compression, the OEM bump stops begin functioning like a secondary spring, resulting in a harsher ride, reduced grip, and less predictable handling.
Density Line Bump Stops are designed to solve this issue with a progressive compression profile that provides smooth engagement throughout the suspension's travel. They allow the suspension to operate more effectively by preserving usable shock travel and maintaining better tire contact with the road.
Manufactured from OEM-quality polyurethane (PUR), each bump stop is engineered with an optimized height and increased durometer to provide improved compression control without introducing excessive harshness.
Designed specifically for lowered vehicles, these bump stops complement performance lowering springs and suspension upgrades while delivering a more controlled, comfortable, and confidence-inspiring driving experience.
Why Suspension Travel Matters
Lowering a vehicle reduces suspension travel, causing the factory bump stops to engage much sooner during normal driving.
When this happens:
- Suspension movement becomes restricted
- Ride quality becomes noticeably harsher
- Tire contact with the road is reduced
- Cornering stability decreases
- Handling becomes less predictable
Density Line Bump Stops restore valuable suspension travel, allowing the dampers to work more efficiently while maintaining better vehicle balance and ride comfort.
Why Choose Performance Bump Stops?
Unlike trimmed factory bump stops, these are purpose-built for lowered suspension systems.
Factory Bump Stops
- Designed for factory ride height
- Engage too early on lowered vehicles
- Can create harsh bottom-outs
- Reduced suspension travel
- Less predictable handling
Density Line Bump Stops
- Engineered specifically for lowered vehicles
- Progressive compression characteristics
- Restores usable suspension travel
- Improves ride comfort
- Better chassis balance and stability
- More consistent suspension performance
Key Features
- Designed specifically for lowered suspension setups
- Helps restore usable suspension travel
- Progressive compression profile
- Improves handling and ride comfort
- Maintains better tire contact during suspension movement
- OEM-quality polyurethane (PUR) construction
- Increased durability and compression control
- Optimized for performance lowering springs
- Reduces harsh bottoming-out
- Improves suspension stability under load
Specifications
Height
- OEM Bump Stop: 55mm
- Performance Bump Stop: 38mm
Durometer
- OEM: 50A
- Performance: 55A
OE Part Reference
- 1K0 412 303 F
What's Included
- 1 Pair of Performance Bump Stops
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