2001 Audi S4 Base Performance Parts

Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for...

Constructed with 100-percent polyurethane boxed frame, this non-oiled OE replacement filter provides years of hassle free service. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding...

Constructed with 100-percent polyurethane boxed frame, this high flow, oiled OE replacement performance filter will outflow the stock filter for improved horsepower and torque. Five layers of progressively finer mesh cotton gauze media provide maximum airflow for best performance results. Washable and reusable for...

NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The...

Every Clutch Masters flywheel is proudly designed and manufactured in the USA. Flywheels are first designed in CAD and are then precision CNC machined in house in one of or Haas CNC lathes out of 6061 aluminum or 1045 steel billet cores. After machining,...

Only from H&R, Super Sport Springs have all the features of Sport Springs, plus additional lowering-great for the seasoned enthusiast looking for a little more. These high tech progressive springs retain superior ride comfort. The handling of your vehicle will be improved with a...

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...

Tuned spring rates and dampers provide optimized performance and superb ride comfortThis Part Fits: Year Make Model Submodel 2001-2002 Audi S4 Avant 2000-2002 Audi S4 Base

Sport Spring kits are H&R's number one selling product. Enhance the look of your vehicle with a reduced fender well gap. H&R sport Springs lower the vehicle's center of gravity and reduce body roll for better handling. The progressive spring rate design provides superb...

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...

Available Stages:“Twin Race” (PTD7R) Two ceramic rigid disc “Triple Race” (P3D7R) Three ceramic rigid discs“Twin Iron” (PTD7D) Two Sintered Iron rigid discs The New FX 725 PRO Series twin and triple disc units are the latest multi disc clutch kits developed by Clutch Masters....

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...