Welcome to Horsham Developments

Horsham Developments specialises in tuning and track preparing high-performance cars. Established in 2001 by Jez Horsham, the company has grown from producing Nissan ECU upgrades into a fully equipped tuning business, capable of performing any work on a wide range of performance cars. More info about us is here

Whether you track, race, drag or drift your car, we have products, services and experience that can help you.

Suspension: We can supply and fit suspension parts from many of the leading brands, including AST, BC-Racing, Driftworks, KSport, Tein and Whiteline. We have also invested in a complete 4 wheel laser alignment setup including corner weight scales to allow us to offer a full range of suspension services. Click here for more info

Mapping: Mapping has been a core part of H-Dev since the very beginning and we take it as seriously today as we have always done. Click here to find out exactly how we can help you to safely get the best from your car.

Brakes: Brakes are a key part of any performance car. Power, consistency, balance and feel are all critical areas, as are temperature control and pad wear.

What else: We pride ourselves in track day preparation, in addition to the above, we can help you optimise your cars cooling, safety, weight reduction and distribution, even full engine rebuilds carried out in our bespoke rebuild room, gearbox and diff rebuilds – the list goes on.