Suspension Secrets Solid Front Control Arm Bushes - BMW F80 M3/F82 M4

Regular price
£245.00
Regular price
Sale price
£245.00
Shipping calculated at checkout.

Improve braking stability and steering accuracy by install the Suspension Secrets Solid Front Control Arm Bush for the BMW F80 M3/F82 M4.

The standard BMW front control arm bushes are made from soft rubber. This rubber flexes when driving fast, causing the steering to feel vague at the limit. These rubber bushes also flex when braking hard leading your M3/M4 to feel nervous or unstable.

To solve both of these problems, solid front control arm bushes are required. Our solid bushes are designed as press-fit replacement for the OEM BMW control arm bushes. As our bushes are solid, they eliminate all of the issues caused by soft rubber bushes. Instead you gain improved braking stability and steering accuracy at the limit.

The key benefits of our Suspension Secrets Solid Front Control Arm Bush for the BMW F80 M3/F82 M4 are:

  • Increased braking stability
  • Improved steering feel and accuracy
  • Reduced understeer
  • Increased sense of connection to the road
Suspension Secrets' products are designed and manufactured in the UK. Our products are made from billet aircraft-grade 6082 T6 aluminium and corrosion-resistant 316 stainless steel. Our solid control arm bushes use Lemforder bearings for maximum performance and longevity.
    Further Reading

    As standard, the OEM rubber bushes used by BMW are quite soft. They are built for refinement, flexibility and durability. Rubber bushes are quiet and are ideal for a car that is designed to be used frequently. 

    Unfortunately, when used in a performance application, rubber bushes have quite a few downsides. When braking hard, the OE rubber bushes flex. They flex so much that the wheel assembly moves rearwards as the car brakes. This causes unwanted toe geometry change which causes the car to feel very nervous and vague when braking.

    The flex in rubber bushes also causes understeer and the steering wheel to feel very inaccurate during cornering.

    Toe

    Toe is the angle between each wheel with relation to the longitudinal axis of the vehicle. The animation below illustrates to toe-in, toe-out and zero toe.

    There are three types of toe: toe-in, toe-out and zero toe. Each toe setting has a separate purpose and an impact upon directional stability when used on a car. Toe has an effect on three major areas which are: corner entry handling, tyre wear and straight line stability.



    Toe-In
    On the front axle of a car toe-in creates straight-line stability, albeit at the expense of some initial reluctance from the car at during the corner turn-in phase. Toe-in on the rear axle again improves straight-line stability, but also induces a slight amount of slip angle which helps when putting power to the ground.

    Toe-in is more common for fast road use.


    Toe-Out
    On the front axle of a car toe-out creates instability in a straight-line. At speed, when a wheel with toe-out is turned, the wheel is pulled rearwards which increases the toe-out angle, pulling the wheel even more outwards. This can even pull the car into yaw. Front axle toe-out can make a car twitchy and unpredictable at high speeds.

    Toe-out does improve turn-in into corners, and the responsiveness of the front end.

    Toe-out on the rear axle can create a slip angle which allows for more traction and acceleration, but with a rear-wheel drive chassis it can also lead to unwanted levels of oversteer.


    Front-axle toe-out is more commonly used for track day or racing applications.

    Zero Toe
    Running zero toe on either the front or rear axles results in minimum tyre wear and power loss. This is because running any level of toe, no matter how small, causes the tyre to scrub in a straight line due to the incurred slip angle, which reduces the rolling efficiency of the tyre.

    Zero toe does not improve handling or feedback, nor does it create slip angle - all of which are desirable in performance driving - and as a result either toe-in or toe-out are more commonly chosen depending on use.

    Tech Specs.

    Suspension Secrets F80 M3/F82 M4 Competition Solid Suspension Bushes are designed and manufactured in the UK. The bushes are CNC-machined from billet 6082 T6 aluminium, and the rubber inserts are sourced from a renowned high-performance OE manufacturer.

    What are the delivery methods and charges for UK, Europe and Rest of World (ROW)?


    Regal Autosport uses a variety of shipping services to give the best combination of value, service and speed to our customers. This will vary on location, value of the time and size to name a few.


    Regal Autosport may drop-ship directly from the manufacturer to the customer if the product is a non-stock item and this provides the best value and service. If this is the case, the delivery method may be different.


    Shipping is calculated automatically at the checkout, depending on your location and the products ordered. On occasion, the shipping price may be incorrect due to your location or the product being oversized in dimension or weight. Whilst we try to be as accurate as possible with our shipping prices, from time to time they might be inaccurate. We will not know until we process your order if this is the case, we will contact you if this is the case and provide you with the option of cancelling or payment of the difference.


    Due to the value of the products sold we only deliver to the verified address of any payment method OR any address if paid for by bank transfer. Thanks to scammers, we simply do not take the risk and any order which does not have a verified address will be cancelled.


    Any customer with an order which has been damaged in transit must notify Regal Autosport immediately and within 14 calendar days of shipping. If this is not done, the shipping insurance cannot be used, and you will not be compensated. 


    United Kingdom Mainland


    Within the United Kingdom Mainland, we use DPD Local. This service is a next working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day. A working day is Monday - Friday only.


    Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day.


    United Kingdom Non-Mainland 

    Within the United Kingdom Non-Mainland, we use DPD Local. This service is a next working day or 2 working day service. For orders which are in-stock and make the 2PM same-day shipping cut-off, they will be delivered the following working day or the second working day. A working day is Monday - Friday only. 


    Europe 

    For Europe, we use DHL. Your delivery location will determine the transit time. Orders in-stock and placed before 2PM will ship the same working day. A working day is Monday - Friday only. 


    Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


    Tracking is automatically sent to your email address or mobile address or both once the order has been processed for shipping. You will then typically receive a 1-hour delivery window on the day. 


    Rest of World (ROW) & Oversize 


    For ROW and oversize items, we typically use DHL Express. Your delivery location will determine the transit time. Orders in-stock and placed before 2 PM will ship the same working day. A working day is Monday - Friday only. 


    Tracking is manually sent to your email address once your order has been processed for shipping. You will then be able to track your order and see an estimated delivery date. 


    Please note: The above is a general guide to how we plan to ship your order. From time to time this may change and we may decide to ship with other couriers.