Bilstein B14 PSS Coilovers Suspension Kit for BMW 4 Series Convertible F33/F83 xDrive AWD – Height Adjustable 30-50mm Lowering – Coilover Shocks & Springs Upgrade – Fits 420i 430i 435i 440i Cabriolet

Transform the way your BMW 4 Series Convertible drives

Unlock sharper handling, a purposeful stance and everyday usability with this height adjustable suspension package engineered for the BMW 4 Series Convertible F33 and F83 xDrive models. This premium setup delivers precise control, reduced body roll and confidence on fast A-roads and track sessions while keeping road comfort in check. It is a direct fit upgrade using OE-quality components and German engineering excellence.

Why enthusiasts choose this upgrade

• Height adjustable ride for the perfect drop and stance
• Monotube gas pressure dampers for crisp response and stability
• Matched springs and dampers tuned for the platform
• Zinc plated threaded bodies for strong corrosion resistance in UK weather
• Direct replacement design that integrates cleanly with factory hardware

Performance and lowering range

Dial in your preferred ride height with an approximate lowering range of 30 to 50 mm. Whether you want a subtle OEM plus drop or a more aggressive street setup, this system lets you fine tune the look and geometry for improved turn in, traction and high speed stability.

Compatibility and important notes

• For cars without adaptive damping or electronic suspension control
• Front axle load up to 1095 kg
• Rear axle load up to 1285 kg
• Threaded body coilover design for precise height adjustment
• Application specific valving for BMW 4 Series Convertible F33 and F83 xDrive

Real world results

We run this setup on customer cars and have been consistently impressed by the balance of comfort and handling. Feedback from owners highlights tighter body control, better mid corner composure and a clean, even drop without sacrificing daily drivability.

Perfect for

• BMW F33 cabriolet suspension upgrade
• BMW 4 Series xDrive lowering kit
• BMW convertible coilover suspension
• Ride height adjustable shocks and springs for street and track
• Performance suspension for 420i 430i 435i 440i xDrive cabrio models

Fitting and setup

Professional installation and alignment are strongly recommended to maximise performance and tyre life. MJ Modifications in Warwickshire can supply, fit and set up this kit to your preferred ride height and geometry. For a fitting quote, email info@mjmodifications.co.uk.

Key features at a glance

• Height adjustable thread design for 30 to 50 mm drop
• Gas pressure monotube dampers with matched springs
• Durable zinc coated bodies for long term protection
• Direct fit, platform specific calibration
• Designed and manufactured in Germany

Upgrade your BMW cabriolet with a high quality adjustable suspension system that delivers precision, confidence and a premium ride. Order today and transform your driving experience.