The company SIMOTA is a pioneer in the production of the so-called "Cool air intake systems" for cars intended for tuning. Each Cold Air Intake intake is individually matched to the make, model and engine (given in the name of the item). Thanks to a properly designed intake pipe, the air entering the engine compartment is sucked away from the engine compartment. This air has a much lower temperature than the air conveyed by standard intake systems All SIMOTA air inlets are made of very light alloys piping clamps fitted SIMOTA filter elements fixing the SIMOTA logo necessary connectors, elbows (as shown in the main picture) Application list: 2000 Audi A4 1.8L L4 Fuel Injection - All Models 2001 Audi A4 1.8L L4 Fuel Injection - All Models 2002 Audi A4 1.8L L4 Fuel Injection - All Models 2003 Audi A4 1.8L L4 Fuel Injection - Turbo 2004 Audi A4 1.8L L4 Fuel Injection - Turbo Additional accessories are also available for the intake systems: & nbsp