APR High Pressure Fuel Pumps | B7 RS4 · B8 S5 · 42 R8 | 4.2L V8 Variant:Upgrade Kit (B7 RS4 | B8 S5 | 42 R8) especially with ethanol fuel blends

especially with ethanol fuel blends

intended for race use

This is the single largest intercooler on the market today

Stage 2 Transmission Tune upgrade available

Optional OEM style cover (CI100052-A) or stylish carbon fiber covers in twill (CI100052-B) or forged carbon (CI100052-C)

APR High Pressure Fuel Pumps | B7 RS4 · B8 S5 · 42 R8 | 4.2L V8 Variant:Upgrade Kit (B7 RS4 | B8 S5 | 42 R8) especially with ethanol fuel blendsThe APR High Pressure Fuel Pump (HPFP) increases maximum volume of fuel the HPFP can deliver by 41% over stock! In doing so, the direct injection fueling system is capable of satisfying fueling requirements set forth by high horsepower setups. This is accomplished by increasing the displacement of the pump using high quality components to exacting tolerances. A low pressure fuel pump (LPFP) in the fuel tank delivers fuel to the high pressure fuel pump