KONI Special Active Suspension Kit for BMW 4 Series F33 Cabrio/Convertible (20132020) | Front & Rear Shocks/Struts | M-Technik/M Sport Compatible | Excludes xDrive & EDC | FSD Frequency Selective Damping

KONI Special Active Damper Set for BMW 4 Series F33 Cabriolet — Front and Rear Shock Absorbers

Transform the way your BMW F33 cabriolet rides and handles with KONI Special Active. This direct-fit shock absorber package brings confident road holding, crisp steering response and genuine comfort on broken British tarmac. Using KONI’s Frequency Selective Damping valve technology, the dampers react to surface inputs in real time, giving taut body control in the bends and a supple, composed feel over potholes, ridges and speed humps. Ideal for fast-road driving and a high-quality replacement for tired factory units, without the harshness.

• Direct replacement front struts and rear shocks — no coding required
• Works perfectly with standard springs and M Sport suspension
• Keeps factory ride height while sharpening control and stability
• Frequency-based valving for both comfort and precision
• Refined ride on B-roads and motorways with reduced roll, dive and squat

Vehicle compatibility

• BMW 4 Series F33 Cabriolet — 2013 to 2020
• Suitable for models with M Sport chassis and M-Technik springs
• Rear-wheel-drive vehicles only — not for xDrive
• For cars without electronic adaptive damping — not for EDC-equipped vehicles

What is included

• 2 x KONI Special Active front struts
• 2 x KONI Special Active rear shock absorbers
• Designed for long-term consistency and OE-level fitment

Why choose this upgrade

• Sharper turn-in and high-speed stability for confident cornering
• Calmer, quieter ride over uneven surfaces and expansion joints
• Balanced damping that keeps passengers comfortable on every journey
• Engineered solution that rivals complex adaptive systems without added weight or electronics

Proven on our builds

We run Special Active on our own projects and customer cars. Feedback is consistently positive: noticeably flatter through bends, smoother over rough surfaces and more planted on the throttle. Drivers love the fast-road feel, while passengers appreciate the comfort.

Installation and support

This is a straightforward, bolt-on swap for the original dampers. For professional fitting, contact MJ Modifications in Warwickshire for a quote: info@mjmodifications.co.uk. We are happy to advise on setup and compatibility with your current springs.

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