H&R 07-13 Audi A3 Quattro (AWD) 4 Cyl/V6/TDI 8P Sport Spring Suspension>Suspension Controllers Features: Provides compressed air source

Features: Provides compressed air source for an air helper spring system Allows for faster inflation of air springs Holds 1/4 gallon of compressed air Includes 1/4 in

It's all bigger: Large 3-1/2 inch boost tubes

and brushed T-304 stainless steel tips are also available

For Sport and Sport S models that do not have factory Daytime Running Lights

The AEM 21-728C Performance Cold Air Intake System produces horsepower and torque gains by replacing your vehicle's restrictive factory air filter and air intake housing

H&R 07-13 Audi A3 Quattro (AWD) 4 Cyl/V6/TDI 8P Sport Spring Suspension>Suspension Controllers Features: Provides compressed air sourceSport 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 ride quality and comfort. A lower wind resistance signature will make the vehicle more streamlined and improve gas mileage. If you are only looking to improve one part of your vehicle's