Forge Motorsport are the largest manufacturer of aftermarket valves in Europe and have been manufacturing and supplying the highest quality blow off valves and diverter valves for many years.

Forge supply many OEM dealers and competition race teams around the world. Forge offer one of the largest selections of aftermarket valves available on the market today. Whether you own a Fiat, Alfa or Lancia and you are looking for the exciting, loud, whooshing rally sound or the most efficient type of diverter valve, Forge have a valve for your application. Many of the Forge valves are designed to fit in place of the original factory valves, giving the customer the simplicity of an easy and direct fitment with improved valve performance.

All Forge valves are designed and manufactured in their our own CNC engineering facility, and tested on their own development vehicles. Every valve is subjected to 100% inspection and test under the international quality system ISO 9001:2000. Forge valves are suitable for most cars with a MAF (mass air flow sensor) and will not cause any engine idling or stalling problems due to the revolutionary and often imitated twin piston, twin spring internal design. The Forge valves are an excellent upgrade to most turbo and supercharger applications.