Dinan Bump Stop Kit / Jounce Bumpers for BMW X5M E70 & X6M E71 (2010-2014) - Ride Comfort & Handling Upgrade - Progressive Bump Stops for Lowered SUVs - Companion to Dinan Lowering Springs - Suspension Travel & Bottoming Control

Dinan Supplemental Ride Quality and Handling Kit for BMW E70 X5 M and E71 X6 M

Transform the way your lowered BMW M SUV rides and handles. This Dinan supplemental kit adds tuned, progressive-rate jounce bumpers that work in harmony with Dinan Performance Spring Sets to increase usable suspension travel on E70 X5 M and E71 X6 M models. The result is a smoother, more composed drive on British roads, improved control over rough surfaces, and sharper responses when you lean on the chassis in fast corners.

If you are lowering your X5 M or X6 M with Dinan springs, this companion bump stop set is the finishing touch that takes the edge off harsh impacts, reduces bottoming, and enhances mechanical grip. It is a proven upgrade for anyone chasing ride comfort and handling precision on a lowered BMW performance SUV.

Key benefits

• Progressive jounce bumpers engineered to complement Dinan spring rates for E70 X5 M and E71 X6 M.
• Maximises compression travel on a lowered setup for better compliance and control.
• Reduces crashiness and prevents sudden bottoming on potholes, speed humps and broken tarmac.
• Optimises effective spring behaviour to boost grip, stability and cornering confidence.
• Delivers a more refined ride quality than springs alone while maintaining a sporty feel.

Real-world results

We have installed this kit alongside Dinan springs for numerous UK customers at MJ Modifications and the feedback is consistently excellent. Owners report a calmer, less jittery ride, better control at speed, and noticeably improved balance on B-roads. It is one of the most effective ways to refine a lowered E70 or E71 without dulling the performance character.

Who is this for

Ideal for drivers searching for terms like BMW X5 M ride comfort upgrade, BMW X6 M handling improvement, E70 jounce bumper kit, E71 bump stop upgrade, lowering spring companion kit, suspension travel enhancer, performance suspension tuning for X5M and X6M, BMW M SUV suspension refinement, and Dinan ride enhancement kit.

Fitment

• BMW X5 M E70, 2010 to 2013
• BMW X6 M E71, 2010 to 2014

What you get

• Tuned, progressive-rate bump stops designed to work with Dinan Performance Spring Sets

Important information

For the intended ride height, comfort and handling balance, install this Supplemental Ride Quality and Handling Kit together with Dinan Performance Spring Sets. Using springs without the matched bump stops often leads to poor ride characteristics and compromised control. Manufacturing defects are covered by warranty. Claims related to undesirable driving traits when the paired kit is not used are not covered.

Professional installation

Fitting is recommended at a specialist. MJ Modifications offers installation at our Warwickshire workshop with geometry setup available on request. For a quote, email info@mjmodifications.co.uk.

Also searched as

BMW X5 M suspension kit, BMW X6 M suspension kit, E70 lowering support kit, E71 lowering support kit, BMW M SUV bump stop set, Dinan ride refinement kit, jounce bumper upgrade for X5M, jounce bumper upgrade for X6M, lowered BMW SUV comfort upgrade, handling upgrade for E70 E71.