KW Variant 3 (V3) Coilover Kit for BMW 6 Series E63/E64 2003–2010 – Inox-Line, Height + Rebound & Compression Adjustable – Fits 630i, 635d, 645Ci, 650i – Part No. 35220006

BMW 6 Series E63 E64 Performance Suspension Upgrade with 2-way Damping and Ride Height Adjustment

Unlock sharper turn-in, flatter cornering and a purposeful stance for your 6er with this premium stainless steel adjustable suspension system. Built on KW’s Inox-Line architecture, this road and track ready kit delivers precise ride height control plus separately adjustable rebound and compression for a truly dialled-in setup on UK roads.

We have installed and set up this kit on multiple E63 Coupes and E64 Convertibles at MJ Modifications, and the feedback is consistently superb. Owners report improved steering feel, increased confidence at speed and real-world comfort for daily use, with the flexibility to fine-tune for fast road or track days when required.

What you get

• Two-way adjustable dampers with clearly defined clicks for rebound and low-speed compression
• Continuous ride height adjustment for a clean, even drop and perfect arch-to-tyre fitment
• Inox-Line stainless steel strut housings for outstanding corrosion resistance in British weather
• Durable composite spring perches and dirt-resistant trapezoid threads for easy adjustments over time
• Premium bushings and hardware engineered for longevity and consistent performance

Why enthusiasts choose this setup

• Tailor your chassis balance for road, B-road blasts or track sessions without changing springs
• Rebound adjustment helps maximise tyre contact and stability over undulations
• Compression adjustment controls roll, pitch and steering response for crisp, predictable handling
• Proven KW development with benchmark build quality and reliability

Compatibility

• Chassis
  • E63 Coupe 09/2003 to 12/2010
  • E64 Convertible 03/2004 to 12/2010
• Models
  • 630i
  • 635d
  • 645Ci
  • 650i and 650Ci

Technical highlights

• 2-way damping adjustability, separately set for rebound and compression
• 16-click rebound for ride quality and body control
• 12-click low-speed compression for roll and pitch management
• Inox-Line stainless bodies for salt and grit resistance all year round
• Comprehensive documentation for straightforward setup
• No special tools required thanks to integrated adjusters

Part number

KW Part No: 35220006

Ideal for owners searching for

BMW E63 E64 suspension kit. BMW 6 Series sport suspension. Adjustable shocks and springs for 630i 635d 645Ci 650i. Height adjustable dampers. Stainless steel struts. Road and track suspension. Fast road setup. Lowering suspension kit. Performance dampers for BMW 6 Series 2003 to 2010. Handling upgrade for E63 coupe and E64 cabriolet. Two-way adjustable shock absorbers. Click-adjust rebound and compression. Inox-Line strut kit. Coil spring and damper package. Sport chassis upgrade.

Installation and setup

Professional fitting, alignment and tailored damping setup available at MJ Modifications in Warwickshire. For a quote or advice on recommended road or track settings, email info@mjmodifications.co.uk.

• Parts Approval
• Adjustment Manual
• 

Warranty

• Street Coilovers, Variant 1, Variant 2, Variant 3, Street Comfort – Limited Lifetime Warranty
• Bushings, bump stops and ball joints – 1 year
• ClubSport coilovers, 2-way Race coilovers, 3-way Race coilovers – No warranty

In summary

If you are chasing a serious handling upgrade, precise stance control and the flexibility of two-way damping, this Inox-Line adjustable suspension kit for the BMW 6 Series E63 and E64 delivers. We run it ourselves, our customers love it, and it transforms the way the car drives without sacrificing everyday comfort.

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