034Motorsport Density Line Bump Stops are engineered to solve one of the biggest drawbacks of lowering a vehicle: reduced suspension travel. When travel disappears, so do handling precision, ride comfort, and the ability for the suspension to keep the tires planted. Density Line Bump Stops are specifically designed to restore this lost performance while adding tuned, progressive control that factory or cut bump stops simply cannot provide.

034Motorsport Density Line Bump Stops

Engineered Travel. Tuned Control. Superior Comfort:
034Motorsport Density Line Bump Stops are built to address one of the most common issues that comes with lowering a vehicle: the loss of usable suspension travel. When the suspension runs out of room to move, the car's ability to handle precisely, ride comfortably, and maintain consistent tire contact all start to suffer. These bump stops are specifically designed to restore that performance by providing additional, carefully tuned suspension support. Their progressive characteristics manage impact forces smoothly, offering control and protection that factory or trimmed bump stops simply cannot deliver. The result is a more composed, predictable, and confident driving experience, especially on lowered setups that demand proper suspension geometry and travel management.

Why Suspension Travel Matters:
Lowered vehicles lose valuable suspension travel, which causes the suspension to reach the factory bump stop much sooner than intended. A bump stop is designed by the OEM as a final-stage buffer, essentially a rubber cushion that protects the shock and suspension components from bottoming out during extreme compression. In a stock-height vehicle, it is meant to engage only during hard impacts and serves as a safety and comfort device rather than a primary spring.

When the vehicle is lowered, that engineered clearance is reduced or eliminated. As a result, the shock engages the OEM bump stop far more often and under lighter loads than originally intended. This turns the bump stop into an unintended secondary spring, which restricts suspension movement, reduces the suspension's ability to absorb bumps, and prevents the tire from maintaining a consistent load. The outcome is a noticeable loss of ride quality, grip, and handling precision.

Precision?Tuned Compression Rate:
Factory bump stops are designed for stock ride heights and spring rates, which means they often fall short when a vehicle is lowered. 034Motorsport Density Line Bump Stops are specifically engineered for lowered setups, particularly those running Dynamic+ Lowering Springs. Each bump stop is carefully shaped, sized, and density?matched to provide a progressive compression profile that acts like a miniature spring and damper. This allows for smooth, comfortable early travel while increasing firmness as the suspension approaches full compression. The result is controlled body motion, predictable handling, and improved ride quality without harshness.

Platform?Specific Engineering
Every Density Line Bump Stop is designed to match its specific chassis, ensuring optimal suspension performance. By utilizing vehicle-specific shapes and lengths, these bump stops restore suspension geometry and travel to near-factory levels, even after lowering. Their compression rate and progression are tuned to complement Dynamic+ Lowering Springs, maintaining handling balance while providing consistent, predictable performance. The optimized length and compression characteristics ensure the bump stop works seamlessly with the rest of the suspension, completing a fully engineered performance package rather than serving as a generic replacement.

Why Not Just Cut the Factory Bump Stop?
Cutting factory bump stops might seem like an easy fix, and people have been doing it for years. But every shortcut has a cost. Trimming might buy you a little travel, but it ruins the last phase of the carefully tuned suspension travel that keeps your suspension controlled and your ride composed. The result? Harsh bottom-outs, unpredictable handling, and a setup that never feels quite right.

034Motorsport Density Line Bump Stops are the right way to do it. Designed from the ground up for lowered vehicles, they deliver the full range of motion your suspension deserves, with smooth, progressive control that cut OEM stops simply can't match. More travel, more precision, no compromises.



Features:

• Lowered on OEM Bump Stops
  • The suspension stops absorbing bumps
  • The tire loses consistent load and grip
  • Handling becomes unpredictable
  • Ride quality becomes harsh and abrupt
  • Factory bump stops were never engineered for lowered ride heights, and cutting them only amplifies harshness.
• Lowered on Density Line Bump Stops
• Restores usable shock travel on lowered vehicles
• Keeps the suspension operating in its intended range
• Improves chassis balance and stability
• Enhances comfort by allowing the shock, not the bump stop, to manage impacts
• Result: A poised, controlled suspension that maintains grip and comfort instead of bottoming out.
• Cut Factory Bump Stops
• Not engineered for lowered ride heights
• Harsh, abrupt engagement
• Minimal tuning for compression or damping
• Reduced comfort and poor control
• Density Line Bump Stops
• Engineered compression profile
• Progressive and smooth engagement
• Increased usable travel and improved control
• Maintains stability under load
• Dramatically improved ride comfort
• Ideal complement to Dynamic+ Lowering Springs

Specifications:

• Designed for Lowered Vehicles
• Improve Handling and Comfort
• A Perfect Match for 034Motorsport Dynamic+ Lowering Springs
• Made from OEM Quality PUR (Polyurethane) Material
• Reduced Height Helps to Maintain Full Suspension Movement on Lowered Vehicles:
• OE Height: 70.5mm
• 034 Height: 53mm
• Increased Durometer Over OE for More Effective Compression Limiting Without Becoming Overly Harsh:
• OE: 50A
• 034: 55A
• Part Number Interchange: 1K0 412 303 B
• Included: 1 Pair - 034Motorsport Bump Stops

Fitments:

• Audi A3 8V 1.8 TFSI 2015-2016
• Audi A3 8V 2.0 TDI 2015-2016
• Audi A3 8V/8V.5 2.0 TFSI 2015-2020
• Audi A3 8Y 2.0 TFSI 2022+
• Audi A3 Sportback E-Tron 8V 1.4L 2016-2018
• Audi S3 8V/8V.5 2.0 TFSI 2015-2020
• Audi S3 8Y 2.0 TFSI 2022+
• Volkswagen Beetle Mk6 1.8T Gen3 2012-2019
• Volkswagen Beetle Mk6 2.0 TSI 2012-2019
• Volkswagen Beetle Mk6 2.0T Gen3 2012-2019
• Volkswagen Beetle Mk6 2.5L 2012-2019
• Volkswagen Eos Mk5 2.0 TSI 2006-2015
• Volkswagen Eos Mk5 2.0T FSI 2006-2015
• Volkswagen Eos Mk5 3.2L VR6 24V 2006-2015
• Volkswagen GLI Mk6 2.0 TSI 2011-2013
• Volkswagen Golf Mk6 2.0 TDI 2010-2014
• Volkswagen Golf Mk6 2.5L 2010-2014
• Volkswagen Golf SportWagen Mk7/Mk7.5 1.8T Gen3 2015-2020
• Volkswagen Golf Alltrack Mk7/Mk7.5 1.8T Gen3 2015-2020
• Volkswagen GTI Mk6 2.0 TSI 2010-2014
• Volkswagen Jetta Mk5 2.0 TDI 2005-2010
• Volkswagen Jetta Mk5 2.5L 2005-2010
• Volkswagen Jetta Mk6 1.4 TSI 2011-2017
• Volkswagen Jetta Mk6 1.8T Gen3 2013-2017
• Volkswagen Jetta Mk6 2.0 TSI 2011-2017
• Volkswagen Jetta Mk6 2.0 TDI 2011-2015
• Volkswagen Jetta Mk6 2.0L 8V 2011-2015
• Volkswagen Jetta Mk6 2.0T Gen3 2011-2017
• Volkswagen Jetta Mk6 2.5L 2011-2017
• Volkswagen Passat B6 2.0 TSI 2006-2010
• Volkswagen Passat B6 2.0T FSI 2006-2010
• Volkswagen Passat B6 3.6L VR6 FSI 2006-2010
• Volkswagen R32 Mk5 3.2L VR6 24V 2008
• Volkswagen Rabbit Mk5 2.5L 2006-2009
• Volkswagen Taos FWD MQB A1 1.5 TSI 2020+