2004 Audi S4 Base Performance Parts

Bilstein B8 Performance Plus dampers are a performance upgrade to OE dampers designed to be paired with aftermarket lowering springs. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is...

Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is...

Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is...

Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and...

NGK Ruthenium HX High Ignitability spark plugs are the best in class plug for todays modern vehicles. Patented Ruthenium technology offers the most advance tip technology and delivers the highest performance and life expectancy. Created from advanced OE technology as a high ignitability plug;...

NGK V-Power spark plugs offer reliable performance and improved ignitability over standard nickel plugs. Engineered specifically for OE applications, the special V-cut nickel alloy center electrode and concave ground electrode of NGK's V-Power spark plug increases ignitability providing quicker starts and smoother idle. NGK's...

Designed to be a direct replacement for the factory slave cylinder, this setup is a simple bolt in affair. Well as simple as it can be, some of those Audi engine bays can be a bit cramped! Kit will include new stainless steel lines...

H&R sport Sway Bars are designed for drivers' who desire improved handling without lowering or affecting ride quality. H&R sport Sway Bars increase your suspension's roll stiffness-or its resistance to roll in turns-while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and...

H&R sport Sway Bars are designed for drivers' who desire improved handling without lowering or affecting ride quality. H&R sport Sway Bars increase your suspension's roll stiffness-or its resistance to roll in turns-while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and...

H&R sport Sway Bars are designed for drivers' who desire improved handling without lowering or affecting ride quality. H&R sport Sway Bars increase your suspension's roll stiffness-or its resistance to roll in turns-while maintaining ride comfort and dramatically increasing cornering control, lateral stability, and...

H&R street Performance Coil Overs are the perfect suspension' solution for discerning drivers-from daily drivers' to serious tuners-who can appreciate awesome handling and superb ride comfort. Each coil over shock is custom valved to work in conjunction with a precision-engineered progressive rate spring, creating...

Headquartered in Los Angeles, California, USA. R1 Concepts is the leading manufacturer and retailer of award winning automotive braking systems. With over 20 years of automotive brake knowledge, R1 Concepts has developed one of the most comprehensive brake catalog in the industry for all...

Headquartered in Los Angeles, California, USA. R1 Concepts is the leading manufacturer and retailer of award winning automotive braking systems. With over 20 years of automotive brake knowledge, R1 Concepts has developed one of the most comprehensive brake catalog in the industry for all...

Headquartered in Los Angeles, California, USA. R1 Concepts is the leading manufacturer and retailer of award winning automotive braking systems. With over 20 years of automotive brake knowledge, R1 Concepts has developed one of the most comprehensive brake catalog in the industry for all...

Headquartered in Los Angeles, California, USA. R1 Concepts is the leading manufacturer and retailer of award winning automotive braking systems. With over 20 years of automotive brake knowledge, R1 Concepts has developed one of the most comprehensive brake catalog in the industry for all...