GruppeM RAM AIR SYSTEM

The GruppeM FRI-0183 RAM AIR SYSTEM is engineered for the Audi S4 models from 2003-2008, specifically the 4.2L V8 Quattro variants (chassis code 8E(B6.B7)). By lowering and stabilizing intake air temperatures, the RAM AIR SYSTEM delivers measurable improvements in torque and power, benefiting performance from low to high RPM ranges. The system not only enhances performance but also contributes a sporty intake sound at higher engine speeds. The "Product introduction" section confirms the manufacturer as GruppeM, with FRI-0183 as the product number. It also notes that an air pump filter is included and provides information on a spare filter (GMR-3301).