Audi 4000S Performance Parts are designed for this Audi 4000 that is the equivalent to European version called the Audi 80. These audi 4000S Performance Parts are essential to upgrade this sensation of a vehicle that was produced for around 40 years (from 1966-1996). Initially the Audi 80 was essentially the Volkswagen Passat and it eventually diverged from its Volkswagen counterpart in the mid 1970s. In the United States the Audi 80 was initially called the FOX for a brief stint and then it took on the 4000 name in 1980. The vehicle was designed by Italian designer Giorgetto Giugiaro. This vehicle proved to be quite profitable because it borrowed parts from many of its counterparts at audi and did not require intire part redesigns. View our inventory of Audi 4000S Performance Parts. These Audi 4000S Performance Parts were designed to suit even the pickiest Audi enthusiast. 4000S Performance Parts are any and all parts used to increase the performance of your vehicle. These 4000S Performance Parts can include but are not limited to: Blow Off Valves, Boost Controllers, Engine Internals, Intercooler Kits, Nitrous Kits, Performance Accessories, Performance Chips, Performance Clutches, Pulleys, Short Shifters, Spark Plug Wires, Spark Plugs, Superchargers, Turbo Charger Kits, Turbo Timers, and Voltage Stabilizer. 4000S Performance Parts are essential add-ons to any vehicle to increase performance. 4000S Performance Parts can increase the performance of a vehicle with little hassle and in many cases may provide bolt on performance. 4000S Performance Parts can be purchased to improve the stock performance of a vehicle, or can be bought in conjunction with other 4000S Performance Parts to dramatically increase the speed and power of your vehicle.