Audi S4 17+ (B9) *W/48.5MM Front Strut Body* Innovative Series Coilover Cylinder Heads and a straight-through glasspack muffler

and a straight-through glasspack muffler to reduce backpressure and improve overall engine efficiency

32-way simultaneous compression & rebound adjustability

increase flow velocity

the spoiler fits seamlessly onto the roofline

Audi S4 17+ (B9) *W/48.5MM Front Strut Body* Innovative Series Coilover Cylinder Heads and a straight-through glasspack mufflerThe SCALE AUDI S4 17+ (B9) *W 48. 5MM FRONT STRUT BODY* INNOVATIVE SERIES COILOVER is fully adjustable and customizable to fit each customer's needs. This coilover suspension upgrade is designed to achieve a perfect balance of street comfort and increased performance. This suspension system allows you to easily adjust your ride height while improving handling performance of your car. Our patented scaled system design allows easier and more precise