Caster Increase Bush Upgrades for the 2016-2018 Ford Focus RS

Although it was only on sale for a short period of time (like most of Ford's best hot variants), between 2016 and 2018, the MK3 Focus RS immediately established itself at the top of the high-performance hot hatch tree. It's 345bhp, 4-wheel drive and usual fun Ford handling, this car is an exceptionally capable vehicle in standard form but it can be improved.

SuperPro's engineers invested a lot of time on a research and development program for the Focus RS which has resulted in a range of products such as upgraded anti-roll bars (RCRS0095KIT) and caster-increase bushes for the front control arms (SPF3370K). All options are designed to extract the maximum handling and grip from the excellent chassis and to get more of the power transferred to the road more effectively. This means a quicker, more fun, more engaging drive and a reduction in the time you need to spend "off-throttle".

Increasing the amount of positive caster adds steering weight, improves straight line tracking, as well as increasing high speed stability and cornering effectiveness. Positive caster also increases tyre lean when cornering (similar to having more negative camber) as the steering angle is increased. Caster is a non-tyre-wearing adjustment so it won't decrease the life of your tyres but will give you benefits from the driving seat.