BMW M3 F80 / M4 F82 Suspension Secrets CS+ Handling Pack 1 – Fast Road

The BMW F80 M3 and F82 M4 remain some of the most exciting modern M cars ever built, combining sharp turbocharged performance with a highly capable chassis that responds exceptionally well to the right suspension setup.

However, like many factory performance cars, the OEM suspension geometry is still compromised by the need to balance comfort, tyre wear, and broad usability. This is most noticeable at the front axle, where limited camber adjustment can lead to understeer, vague steering feedback, and excessive outer-edge tyre wear during spirited driving. At the rear, the factory toe arms and rubber bushings introduce unwanted flex, reducing consistency and rear-end stability under load.

The Suspension Secrets CS+ Handling Pack 1 (Fast Road) is the first step in unlocking the true chassis potential of the F8X platform. Designed as the entry point into the Suspension Secrets handling range, this package focuses on correcting the factory geometry limitations and improving overall balance without sacrificing road usability.

This kit combines adjustable front camber and caster plates with adjustable solid rear toe arms, creating a fast-road-focused geometry package that significantly sharpens front-end grip, steering response, and rear-end stability.

This is the ideal upgrade for drivers looking to improve confidence, grip, and overall road performance while maintaining everyday drivability.

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

• Entry-level Suspension Secrets handling package for F80 M3 & F82 M4
• Increased front camber adjustment for improved front-end grip
• Increased caster for sharper steering feel and better feedback
• Solid rear toe arms for improved rear-end stability
• Reduced understeer during spirited driving
• Improved tyre wear characteristics
• Suitable for road and occasional track use
• Designed and manufactured in the UK
• Compatible with OEM suspension, lowering springs, and coilovers

What this Kit Delivers

By increasing front negative camber and caster, the front axle gains significantly more grip during cornering, sharper turn-in, and improved steering feel. At the rear, the solid adjustable toe arms eliminate unwanted arm flex and allow far greater precision when dialling in rear geometry settings. Together, these changes create a more balanced, more confidence-inspiring chassis with improved traction, sharper feedback, and greater consistency through fast road driving.

• 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 F8X 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 F80 (2014-2018)
• BMW M4 F82 (2014-2020)

This handling package may be suitable for other M-Powered cars in the F8X 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.