Dinan Supplemental Ride Quality & Handling Kit for BMW 340i / 430i / 440i / 428i / 435i 2014-2020
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Purpose: A supplemental kit designed to be paired with Dinan performance spring sets.
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Core Function: Uses tuned, progressive-rate bump stops to maximize suspension travel in a lowered car.
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Key Benefits:
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Prevents "bottoming out" by allowing full spring compression.
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Improves both handling capabilities and ride quality compared to using springs alone.
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Optimizes the spring rate for added mechanical grip and cornering power.
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Kit Contents: Includes 4 bump stops.
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Quality & Tuning: Bump stops are made from OE-quality materials and are specifically tuned for use with Dinan springs.
Note: Installation labor time is 7.8 hrs (RWD) or 8.2 hrs (xDrive) if supplemental ride quality & handling kit is installed by itself. Installation labor time will be negligible if installed at the same time as the corresponding Dinan Spring Set.
Fitment Chart:
| Make |
Model |
Year |
BMW
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340i
|
2016-2018
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BMW |
340i xDrive
|
2016-2018
|
|
BMW |
428i |
2014-2016
|
|
BMW |
430i |
2017-2020 |
|
BMW |
435i |
2014-2016 |
|
BMW |
435i Gran Coupe |
2015-2016 |
|
BMW |
435i xDrive |
2014-2016 |
|
BMW |
440i |
2017-2020 |
|
BMW |
440i Gran Coupe |
2017-2020 |
|
BMW |
440i xDrive |
2017-2020 |
⚠️ California Proposition 65 Warning:
This product may expose you to chemicals known to the State of California
to cause cancer or reproductive harm.
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Unused items in brand-new, original packaging can be returned within 30 days. While standard refunds incur a 25% restocking fee, we will waive this fee entirely if you choose store credit or an exchange for your next upgrade.
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Exclusions:
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