Eibach Pro-Street S Kit for BMW E46 M3

BMW’s E46 M3 is now firmly in the ‘bargain basement’ category, with even the tidiest examples being available for around five or six thousand pounds. As an affordable RWD driving platform, it’s the perfect basis for tuning, so the announcement of Eibach’s adjustable Pro-Street S coilover kit will come as welcome news to many disciples of the Blue Propeller.

Fabricated entirely by Eibach’s in-house German motorsport division, this kit offers competition quality, with road car manners – and is suitable for the Coupe, Saloon, and Convertible models.

Careful choice of spring and damper rate means that easy set-up and adjustment has been designed into the units from the outset and the adjustable spring seat can be easily wound up or down in order to achieve the perfect stance – or corner weighting, before being easily locked off with a stainless allen bolt. Eibach actually uses the hugely-respected, multi-championship winning ERS range of race springs on the Pro-Street units, which goes a long way towards explaining their race pedigree. Although not designed as a race-spec unit, there are numerous club-level competitors who have used the previous generation kit to great effect in British motorsport. To that end, the units can also accept any springs from Eibach’s ERS range, allowing rates and free lengths to be adjusted to owner’s preference, if required.

This latest kit, designed specifically for the car, uses the latest materials and construction techniques to give any of the E46 models a wide range of ride-height adjustment, while still retaining a fantastic ride quality. As the name suggests, Pro-Street S units are designed with road-use in mind, although thanks to their stainless steel construction, precision damper units and unparalleled build quality, they will also be a pretty effective upgrade on track, too.


Ride height can be adjusted from anywhere between -20mm and -40mm from the M3s already lower ride height, offering a truly aggressive stance if required, or a more subtle drop if preferred. Damper rates are computer matched with the springs at the Eibach factory, making the Pro-Street S kit a true ‘fit and forget’ proposition once the desired ride-height has been set.

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