BMW M3 G80 / M4 G82 Suspension Secrets CS+ Handling Pack 1 – Fast Road

Suspension Secrets CS+ Handling Pack (Fast Road) for BMW G80 M3 and G82 M4. Improve Grip, Steering Feel, and Chassis Balance with Adjustable Geometry Upgrades

The BMW G80 M3 and G82 M4 are already benchmark performance cars in the modern sports saloon and coupe segment, powered by the formidable S58 twin-turbo inline-six and built on a highly capable chassis platform.

However, like all factory performance setups, BMW has to strike a balance between comfort, tyre wear, road compliance, and mass-market usability. This inevitably leaves performance potential on the table for drivers who want sharper response, greater adjustability, and more confidence at the limit.

The Suspension Secrets CS+ Handling Pack has been engineered specifically to unlock that hidden potential within the G8X chassis. Inspired by the geometry improvements found on BMW’s CS and CSL models, this package goes further by introducing additional adjustability and refinement, allowing owners to properly optimise their alignment settings for fast road and track use.

This kit combines adjustable front camber/caster top mounts with rear adjustable toe arms, delivering a complete front and rear geometry solution in one package.

The result is a more responsive, more precise, and more confidence-inspiring driving experience without compromising everyday usability.

We would highly recommend installing an upgraded suspension package when doing this upgrade such as Eibach Springs or the KW HAS kit. Get in touch for more info.

Key Features

• CS+ Handling Pack developed for BMW G80 M3 & G82 M4
• Increased front-end grip and steering precision
• Improved chassis balance and high-speed stability
• Adjustable camber, caster, and rear toe geometry
• Reduced tyre wear during aggressive driving
• Enhanced feedback and driver confidence
• Designed and manufactured in the UK
• Suitable for road and track applications

What this Kit Delivers

Rather than focusing on a single area of the chassis, the CS+ Handling Pack works across both front and rear suspension geometry to create a complete handling solution. The front adjustable camber and caster mounts allow the G8X platform to run more aggressive and effective alignment settings, improving front-end grip and steering response, while the rear adjustable toe arms provide precise control over rear axle stability and balance. Together, these components allow the chassis to work more efficiently under load, improving consistency, predictability, and overall driver confidence both on road and track.

• Suspension Secrets Adjustable Camber & Caster Plates
• Suspension Secrets Adjustable Rear Toe Arms

The Suspension Secrets Handling Range

This CS+ Handling Pack represents the entry point into the Suspension Secrets G8X chassis upgrade range.

It is designed for drivers who want a significant improvement over OEM geometry without committing to a full motorsport-focused setup. For those looking to go further, Suspension Secrets also offer more aggressive solutions including the Handling Pack 2 (Clubsport) and Handling Pack 3 (Track), which introduce further levels of adjustability, rigidity, and circuit-focused optimisation.

The CS+ package therefore acts as the ideal foundation, delivering meaningful gains in grip, balance, and steering response while maintaining full road usability.

Why Suspension Secrets?

Suspension Secrets is a UK-based suspension and chassis dynamics specialist focused on precision-engineered solutions for high-performance road cars and motorsport applications.

Their development approach is based on real-world testing and geometry optimisation rather than generic adjustability. Each component is designed to improve grip, stability, and driver confidence while maintaining OEM-level durability.

All products are manufactured in the UK using billet aluminium, stainless steel hardware, and motorsport-grade spherical bearings.

YouTube Video

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Installation

Professional installation and a full alignment setup are strongly recommended to fully realise the benefits of this package. Correct geometry setup is essential to tailoring the chassis for road or track use.

If you choose to opt for Installation here at our HQ, this includes full installation of this pack alongside a full geometry setup which includes 4-wheel alignment.

Compatibility:

• BMW M3 G80 (2021+)
• BMW M4 G82 (2021+)

This handling package may be suitable for other M-Powered cars in the G8X range so please get in touch for more information

Please Note:

• We are able to ship this kit world-wide
• As this is a motorsport derived kit it does not include instructions but rather needs to be installed by a technician with BMW and Motorsport experience. Incorrect setup post installation will result in deteriorated performance.
• If you are unsure of fitment, or would like up to date stock levels, please drop us a message and get in touch.